diff --git a/wp-includes/class-wp-post-type.php b/wp-includes/class-wp-post-type.php
index 7a2769ed88..9d22e2617b 100644
--- a/wp-includes/class-wp-post-type.php
+++ b/wp-includes/class-wp-post-type.php
@@ -913,6 +913,7 @@ final class WP_Post_Type {
 	 * Will only instantiate the controller class once per request.
 	 *
 	 * @since 6.4.0
+	 * @since 6.5.0 Prevents autosave class instantiation for wp_global_styles post types.
 	 *
 	 * @return WP_REST_Controller|null The controller instance, or null if the post type
 	 *                                 is set not to show in rest.
@@ -922,7 +923,7 @@ final class WP_Post_Type {
 			return null;
 		}
 
-		if ( 'attachment' === $this->name ) {
+		if ( in_array( $this->name, array( 'attachment', 'wp_global_styles' ), true ) ) {
 			return null;
 		}
 
diff --git a/wp-includes/post.php b/wp-includes/post.php
index 5fa058363a..c08e0ecb2e 100644
--- a/wp-includes/post.php
+++ b/wp-includes/post.php
@@ -473,15 +473,19 @@ function create_initial_post_types() {
 	register_post_type(
 		'wp_global_styles',
 		array(
-			'label'        => _x( 'Global Styles', 'post type general name' ),
-			'description'  => __( 'Global styles to include in themes.' ),
-			'public'       => false,
-			'_builtin'     => true, /* internal use only. don't use this when registering your own post type. */
-			'_edit_link'   => '/site-editor.php?canvas=edit', /* internal use only. don't use this when registering your own post type. */
-			'show_ui'      => false,
-			'show_in_rest' => false,
-			'rewrite'      => false,
-			'capabilities' => array(
+			'label'                           => _x( 'Global Styles', 'post type general name' ),
+			'description'                     => __( 'Global styles to include in themes.' ),
+			'public'                          => false,
+			'_builtin'                        => true, /* internal use only. don't use this when registering your own post type. */
+			'_edit_link'                      => '/site-editor.php?canvas=edit', /* internal use only. don't use this when registering your own post type. */
+			'show_ui'                         => false,
+			'show_in_rest'                    => true,
+			'rewrite'                         => false,
+			'rest_base'                       => 'global-styles',
+			'rest_controller_class'           => 'WP_REST_Global_Styles_Controller',
+			'revisions_rest_controller_class' => 'WP_REST_Global_Styles_Revisions_Controller',
+			'late_route_registration'         => true,
+			'capabilities'                    => array(
 				'read'                   => 'edit_theme_options',
 				'create_posts'           => 'edit_theme_options',
 				'edit_posts'             => 'edit_theme_options',
@@ -490,8 +494,8 @@ function create_initial_post_types() {
 				'edit_others_posts'      => 'edit_theme_options',
 				'delete_others_posts'    => 'edit_theme_options',
 			),
-			'map_meta_cap' => true,
-			'supports'     => array(
+			'map_meta_cap'                    => true,
+			'supports'                        => array(
 				'title',
 				'editor',
 				'revisions',
diff --git a/wp-includes/rest-api.php b/wp-includes/rest-api.php
index b44b205afb..6014e93dbc 100644
--- a/wp-includes/rest-api.php
+++ b/wp-includes/rest-api.php
@@ -323,14 +323,6 @@ function create_initial_rest_routes() {
 	$controller = new WP_REST_Block_Types_Controller();
 	$controller->register_routes();
 
-	// Global Styles revisions.
-	$controller = new WP_REST_Global_Styles_Revisions_Controller();
-	$controller->register_routes();
-
-	// Global Styles.
-	$controller = new WP_REST_Global_Styles_Controller();
-	$controller->register_routes();
-
 	// Settings.
 	$controller = new WP_REST_Settings_Controller();
 	$controller->register_routes();
diff --git a/wp-includes/rest-api/endpoints/class-wp-rest-global-styles-controller.php b/wp-includes/rest-api/endpoints/class-wp-rest-global-styles-controller.php
index 9837f535e2..9a0b687615 100644
--- a/wp-includes/rest-api/endpoints/class-wp-rest-global-styles-controller.php
+++ b/wp-includes/rest-api/endpoints/class-wp-rest-global-styles-controller.php
@@ -10,25 +10,14 @@
 /**
  * Base Global Styles REST API Controller.
  */
-class WP_REST_Global_Styles_Controller extends WP_REST_Controller {
-
+class WP_REST_Global_Styles_Controller extends WP_REST_Posts_Controller {
 	/**
-	 * Post type.
+	 * Whether the controller supports batching.
 	 *
-	 * @since 5.9.0
-	 * @var string
+	 * @since 6.5.0
+	 * @var array
 	 */
-	protected $post_type;
-
-	/**
-	 * Constructor.
-	 * @since 5.9.0
-	 */
-	public function __construct() {
-		$this->namespace = 'wp/v2';
-		$this->rest_base = 'global-styles';
-		$this->post_type = 'wp_global_styles';
-	}
+	protected $allow_batch = array( 'v1' => false );
 
 	/**
 	 * Registers the controllers routes.
@@ -194,28 +183,10 @@ class WP_REST_Global_Styles_Controller extends WP_REST_Controller {
 	 * @param WP_Post $post Post object.
 	 * @return bool Whether the post can be read.
 	 */
-	protected function check_read_permission( $post ) {
+	public function check_read_permission( $post ) {
 		return current_user_can( 'read_post', $post->ID );
 	}
 
-	/**
-	 * Returns the given global styles config.
-	 *
-	 * @since 5.9.0
-	 *
-	 * @param WP_REST_Request $request The request instance.
-	 *
-	 * @return WP_REST_Response|WP_Error
-	 */
-	public function get_item( $request ) {
-		$post = $this->get_post( $request['id'] );
-		if ( is_wp_error( $post ) ) {
-			return $post;
-		}
-
-		return $this->prepare_item_for_response( $post, $request );
-	}
-
 	/**
 	 * Checks if a given request has access to write a single global styles config.
 	 *
@@ -241,55 +212,6 @@ class WP_REST_Global_Styles_Controller extends WP_REST_Controller {
 		return true;
 	}
 
-	/**
-	 * Checks if a global style can be edited.
-	 *
-	 * @since 5.9.0
-	 *
-	 * @param WP_Post $post Post object.
-	 * @return bool Whether the post can be edited.
-	 */
-	protected function check_update_permission( $post ) {
-		return current_user_can( 'edit_post', $post->ID );
-	}
-
-	/**
-	 * Updates a single global style config.
-	 *
-	 * @since 5.9.0
-	 *
-	 * @param WP_REST_Request $request Full details about the request.
-	 * @return WP_REST_Response|WP_Error Response object on success, or WP_Error object on failure.
-	 */
-	public function update_item( $request ) {
-		$post_before = $this->get_post( $request['id'] );
-		if ( is_wp_error( $post_before ) ) {
-			return $post_before;
-		}
-
-		$changes = $this->prepare_item_for_database( $request );
-		if ( is_wp_error( $changes ) ) {
-			return $changes;
-		}
-
-		$result = wp_update_post( wp_slash( (array) $changes ), true, false );
-		if ( is_wp_error( $result ) ) {
-			return $result;
-		}
-
-		$post          = get_post( $request['id'] );
-		$fields_update = $this->update_additional_fields_for_object( $post, $request );
-		if ( is_wp_error( $fields_update ) ) {
-			return $fields_update;
-		}
-
-		wp_after_insert_post( $post, true, $post_before );
-
-		$response = $this->prepare_item_for_response( $post, $request );
-
-		return rest_ensure_response( $response );
-	}
-
 	/**
 	 * Prepares a single global styles config for update.
 	 *
@@ -407,7 +329,7 @@ class WP_REST_Global_Styles_Controller extends WP_REST_Controller {
 			$links = $this->prepare_links( $post->ID );
 			$response->add_links( $links );
 			if ( ! empty( $links['self']['href'] ) ) {
-				$actions = $this->get_available_actions();
+				$actions = $this->get_available_actions( $post, $request );
 				$self    = $links['self']['href'];
 				foreach ( $actions as $rel ) {
 					$response->add_link( $rel, $self );
@@ -431,9 +353,12 @@ class WP_REST_Global_Styles_Controller extends WP_REST_Controller {
 		$base = sprintf( '%s/%s', $this->namespace, $this->rest_base );
 
 		$links = array(
-			'self' => array(
+			'self'  => array(
 				'href' => rest_url( trailingslashit( $base ) . $id ),
 			),
+			'about' => array(
+				'href' => rest_url( 'wp/v2/types/' . $this->post_type ),
+			),
 		);
 
 		if ( post_type_supports( $this->post_type, 'revisions' ) ) {
@@ -454,13 +379,16 @@ class WP_REST_Global_Styles_Controller extends WP_REST_Controller {
 	 *
 	 * @since 5.9.0
 	 * @since 6.2.0 Added 'edit-css' action.
+	 * @since 6.5.0 Added $post and $request parameters.
 	 *
+	 * @param WP_Post         $post    Post object.
+	 * @param WP_REST_Request $request Request object.
 	 * @return array List of link relations.
 	 */
-	protected function get_available_actions() {
+	protected function get_available_actions( $post, $request ) {
 		$rels = array();
 
-		$post_type = get_post_type_object( $this->post_type );
+		$post_type = get_post_type_object( $post->post_type );
 		if ( current_user_can( $post_type->cap->publish_posts ) ) {
 			$rels[] = 'https://api.w.org/action-publish';
 		}
@@ -472,21 +400,6 @@ class WP_REST_Global_Styles_Controller extends WP_REST_Controller {
 		return $rels;
 	}
 
-	/**
-	 * Overwrites the default protected title format.
-	 *
-	 * By default, WordPress will show password protected posts with a title of
-	 * "Protected: %s", as the REST API communicates the protected status of a post
-	 * in a machine readable format, we remove the "Protected: " prefix.
-	 *
-	 * @since 5.9.0
-	 *
-	 * @return string Protected title format.
-	 */
-	public function protected_title_format() {
-		return '%s';
-	}
-
 	/**
 	 * Retrieves the query params for the global styles collection.
 	 *
diff --git a/wp-includes/rest-api/endpoints/class-wp-rest-global-styles-revisions-controller.php b/wp-includes/rest-api/endpoints/class-wp-rest-global-styles-revisions-controller.php
index db1be197e5..849f5be5cd 100644
--- a/wp-includes/rest-api/endpoints/class-wp-rest-global-styles-revisions-controller.php
+++ b/wp-includes/rest-api/endpoints/class-wp-rest-global-styles-revisions-controller.php
@@ -14,14 +14,14 @@
  *
  * @see WP_REST_Controller
  */
-class WP_REST_Global_Styles_Revisions_Controller extends WP_REST_Controller {
+class WP_REST_Global_Styles_Revisions_Controller extends WP_REST_Revisions_Controller {
 	/**
-	 * Parent post type.
+	 * Parent controller.
 	 *
-	 * @since 6.3.0
-	 * @var string
+	 * @since 6.5.0
+	 * @var WP_REST_Controller
 	 */
-	protected $parent_post_type;
+	private $parent_controller;
 
 	/**
 	 * The base of the parent controller's route.
@@ -35,12 +35,23 @@ class WP_REST_Global_Styles_Revisions_Controller extends WP_REST_Controller {
 	 * Constructor.
 	 *
 	 * @since 6.3.0
+	 * @since 6.5.0 Extends class from WP_REST_Revisions_Controller.
+	 *
+	 * @param string $parent_post_type Post type of the parent.
 	 */
-	public function __construct() {
-		$this->parent_post_type = 'wp_global_styles';
-		$this->rest_base        = 'revisions';
-		$this->parent_base      = 'global-styles';
-		$this->namespace        = 'wp/v2';
+	public function __construct( $parent_post_type ) {
+		parent::__construct( $parent_post_type );
+		$post_type_object  = get_post_type_object( $parent_post_type );
+		$parent_controller = $post_type_object->get_rest_controller();
+
+		if ( ! $parent_controller ) {
+			$parent_controller = new WP_REST_Global_Styles_Controller( $parent_post_type );
+		}
+
+		$this->parent_controller = $parent_controller;
+		$this->rest_base         = 'revisions';
+		$this->parent_base       = ! empty( $post_type_object->rest_base ) ? $post_type_object->rest_base : $post_type_object->name;
+		$this->namespace         = ! empty( $post_type_object->rest_namespace ) ? $post_type_object->rest_namespace : 'wp/v2';
 	}
 
 	/**
@@ -63,7 +74,7 @@ class WP_REST_Global_Styles_Revisions_Controller extends WP_REST_Controller {
 				array(
 					'methods'             => WP_REST_Server::READABLE,
 					'callback'            => array( $this, 'get_items' ),
-					'permission_callback' => array( $this, 'get_item_permissions_check' ),
+					'permission_callback' => array( $this, 'get_items_permissions_check' ),
 					'args'                => $this->get_collection_params(),
 				),
 				'schema' => array( $this, 'get_public_item_schema' ),
@@ -97,29 +108,6 @@ class WP_REST_Global_Styles_Revisions_Controller extends WP_REST_Controller {
 		);
 	}
 
-	/**
-	 * Retrieves the query params for collections.
-	 *
-	 * Inherits from WP_REST_Controller::get_collection_params(),
-	 * also reflects changes to return value WP_REST_Revisions_Controller::get_collection_params().
-	 *
-	 * @since 6.3.0
-	 *
-	 * @return array Collection parameters.
-	 */
-	public function get_collection_params() {
-		$collection_params                       = parent::get_collection_params();
-		$collection_params['context']['default'] = 'view';
-		$collection_params['offset']             = array(
-			'description' => __( 'Offset the result set by a specific number of items.' ),
-			'type'        => 'integer',
-		);
-		unset( $collection_params['search'] );
-		unset( $collection_params['per_page']['default'] );
-
-		return $collection_params;
-	}
-
 	/**
 	 * Returns decoded JSON from post content string,
 	 * or a 404 if not found.
@@ -268,80 +256,6 @@ class WP_REST_Global_Styles_Revisions_Controller extends WP_REST_Controller {
 		return $response;
 	}
 
-	/**
-	 * Retrieves one global styles revision from the collection.
-	 *
-	 * @since 6.5.0
-	 *
-	 * @param WP_REST_Request $request Full details about the request.
-	 * @return WP_REST_Response|WP_Error Response object on success, or WP_Error object on failure.
-	 */
-	public function get_item( $request ) {
-		$parent = $this->get_parent( $request['parent'] );
-		if ( is_wp_error( $parent ) ) {
-			return $parent;
-		}
-
-		$revision = $this->get_revision( $request['id'] );
-		if ( is_wp_error( $revision ) ) {
-			return $revision;
-		}
-
-		$response = $this->prepare_item_for_response( $revision, $request );
-		return rest_ensure_response( $response );
-	}
-
-	/**
-	 * Gets the global styles revision, if the ID is valid.
-	 *
-	 * @since 6.5.0
-	 *
-	 * @param int $id Supplied ID.
-	 * @return WP_Post|WP_Error Revision post object if ID is valid, WP_Error otherwise.
-	 */
-	protected function get_revision( $id ) {
-		$error = new WP_Error(
-			'rest_post_invalid_id',
-			__( 'Invalid global styles revision ID.' ),
-			array( 'status' => 404 )
-		);
-
-		if ( (int) $id <= 0 ) {
-			return $error;
-		}
-
-		$revision = get_post( (int) $id );
-		if ( empty( $revision ) || empty( $revision->ID ) || 'revision' !== $revision->post_type ) {
-			return $error;
-		}
-
-		return $revision;
-	}
-
-	/**
-	 * Checks the post_date_gmt or modified_gmt and prepare any post or
-	 * modified date for single post output.
-	 *
-	 * Duplicate of WP_REST_Revisions_Controller::prepare_date_response.
-	 *
-	 * @since 6.3.0
-	 *
-	 * @param string      $date_gmt GMT publication time.
-	 * @param string|null $date     Optional. Local publication time. Default null.
-	 * @return string|null ISO8601/RFC3339 formatted datetime, otherwise null.
-	 */
-	protected function prepare_date_response( $date_gmt, $date = null ) {
-		if ( '0000-00-00 00:00:00' === $date_gmt ) {
-			return null;
-		}
-
-		if ( isset( $date ) ) {
-			return mysql_to_rfc3339( $date );
-		}
-
-		return mysql_to_rfc3339( $date_gmt );
-	}
-
 	/**
 	 * Prepares the revision for the REST response.
 	 *
@@ -411,6 +325,7 @@ class WP_REST_Global_Styles_Revisions_Controller extends WP_REST_Controller {
 	 * Retrieves the revision's schema, conforming to JSON Schema.
 	 *
 	 * @since 6.3.0
+	 * @since 6.5.0 Merged parent and parent controller schema data.
 	 *
 	 * @return array Item schema data.
 	 */
@@ -419,70 +334,15 @@ class WP_REST_Global_Styles_Revisions_Controller extends WP_REST_Controller {
 			return $this->add_additional_fields_schema( $this->schema );
 		}
 
-		$schema = array(
-			'$schema'    => 'http://json-schema.org/draft-04/schema#',
-			'title'      => "{$this->parent_post_type}-revision",
-			'type'       => 'object',
-			// Base properties for every revision.
-			'properties' => array(
+		$schema               = parent::get_item_schema();
+		$parent_schema        = $this->parent_controller->get_item_schema();
+		$schema['properties'] = array_merge( $schema['properties'], $parent_schema['properties'] );
 
-				/*
-				 * Adds settings and styles from the WP_REST_Revisions_Controller item fields.
-				 * Leaves out GUID as global styles shouldn't be accessible via URL.
-				 */
-				'author'       => array(
-					'description' => __( 'The ID for the author of the revision.' ),
-					'type'        => 'integer',
-					'context'     => array( 'view', 'edit', 'embed' ),
-				),
-				'date'         => array(
-					'description' => __( "The date the revision was published, in the site's timezone." ),
-					'type'        => 'string',
-					'format'      => 'date-time',
-					'context'     => array( 'view', 'edit', 'embed' ),
-				),
-				'date_gmt'     => array(
-					'description' => __( 'The date the revision was published, as GMT.' ),
-					'type'        => 'string',
-					'format'      => 'date-time',
-					'context'     => array( 'view', 'edit' ),
-				),
-				'id'           => array(
-					'description' => __( 'Unique identifier for the revision.' ),
-					'type'        => 'integer',
-					'context'     => array( 'view', 'edit', 'embed' ),
-				),
-				'modified'     => array(
-					'description' => __( "The date the revision was last modified, in the site's timezone." ),
-					'type'        => 'string',
-					'format'      => 'date-time',
-					'context'     => array( 'view', 'edit' ),
-				),
-				'modified_gmt' => array(
-					'description' => __( 'The date the revision was last modified, as GMT.' ),
-					'type'        => 'string',
-					'format'      => 'date-time',
-					'context'     => array( 'view', 'edit' ),
-				),
-				'parent'       => array(
-					'description' => __( 'The ID for the parent of the revision.' ),
-					'type'        => 'integer',
-					'context'     => array( 'view', 'edit', 'embed' ),
-				),
-
-				// Adds settings and styles from the WP_REST_Global_Styles_Controller parent schema.
-				'styles'       => array(
-					'description' => __( 'Global styles.' ),
-					'type'        => array( 'object' ),
-					'context'     => array( 'view', 'edit' ),
-				),
-				'settings'     => array(
-					'description' => __( 'Global settings.' ),
-					'type'        => array( 'object' ),
-					'context'     => array( 'view', 'edit' ),
-				),
-			),
-		);
+		unset( $schema['properties']['guid'] );
+		unset( $schema['properties']['slug'] );
+		unset( $schema['properties']['meta'] );
+		unset( $schema['properties']['content'] );
+		unset( $schema['properties']['title'] );
 
 		$this->schema = $schema;
 
@@ -490,62 +350,20 @@ class WP_REST_Global_Styles_Revisions_Controller extends WP_REST_Controller {
 	}
 
 	/**
-	 * Checks if a given request has access to read a single global style.
+	 * Retrieves the query params for collections.
+	 * Removes params that are not supported by global styles revisions.
 	 *
-	 * @since 6.3.0
+	 * @since 6.5.0
 	 *
-	 * @param WP_REST_Request $request Full details about the request.
-	 * @return true|WP_Error True if the request has read access, WP_Error object otherwise.
+	 * @return array Collection parameters.
 	 */
-	public function get_item_permissions_check( $request ) {
-		$post = $this->get_parent( $request['parent'] );
-		if ( is_wp_error( $post ) ) {
-			return $post;
-		}
-
-		/*
-		 * The same check as WP_REST_Global_Styles_Controller::get_item_permissions_check.
-		 */
-		if ( ! current_user_can( 'read_post', $post->ID ) ) {
-			return new WP_Error(
-				'rest_cannot_view',
-				__( 'Sorry, you are not allowed to view revisions for this global style.' ),
-				array( 'status' => rest_authorization_required_code() )
-			);
-		}
-
-		return true;
-	}
-
-	/**
-	 * Gets the parent post, if the ID is valid.
-	 *
-	 * Duplicate of WP_REST_Revisions_Controller::get_parent.
-	 *
-	 * @since 6.3.0
-	 *
-	 * @param int $parent_post_id Supplied ID.
-	 * @return WP_Post|WP_Error Post object if ID is valid, WP_Error otherwise.
-	 */
-	protected function get_parent( $parent_post_id ) {
-		$error = new WP_Error(
-			'rest_post_invalid_parent',
-			__( 'Invalid post parent ID.' ),
-			array( 'status' => 404 )
-		);
-
-		if ( (int) $parent_post_id <= 0 ) {
-			return $error;
-		}
-
-		$parent_post = get_post( (int) $parent_post_id );
-
-		if ( empty( $parent_post ) || empty( $parent_post->ID )
-			|| $this->parent_post_type !== $parent_post->post_type
-		) {
-			return $error;
-		}
-
-		return $parent_post;
+	public function get_collection_params() {
+		$query_params = parent::get_collection_params();
+		unset( $query_params['exclude'] );
+		unset( $query_params['include'] );
+		unset( $query_params['search'] );
+		unset( $query_params['order'] );
+		unset( $query_params['orderby'] );
+		return $query_params;
 	}
 }
diff --git a/wp-includes/version.php b/wp-includes/version.php
index 6581e9cd0a..3fb2180595 100644
--- a/wp-includes/version.php
+++ b/wp-includes/version.php
@@ -16,7 +16,7 @@
  *
  * @global string $wp_version
  */
-$wp_version = '6.5-alpha-57623';
+$wp_version = '6.5-alpha-57624';
 
 /**
  * Holds the WordPress DB revision, increments when changes are made to the WordPress DB schema.
diff --git a/wp-settings.php b/wp-settings.php
index 2772568dee..c3c080e5fe 100644
--- a/wp-settings.php
+++ b/wp-settings.php
@@ -276,10 +276,10 @@ require ABSPATH . WPINC . '/rest-api/endpoints/class-wp-rest-controller.php';
 require ABSPATH . WPINC . '/rest-api/endpoints/class-wp-rest-posts-controller.php';
 require ABSPATH . WPINC . '/rest-api/endpoints/class-wp-rest-attachments-controller.php';
 require ABSPATH . WPINC . '/rest-api/endpoints/class-wp-rest-global-styles-controller.php';
-require ABSPATH . WPINC . '/rest-api/endpoints/class-wp-rest-global-styles-revisions-controller.php';
 require ABSPATH . WPINC . '/rest-api/endpoints/class-wp-rest-post-types-controller.php';
 require ABSPATH . WPINC . '/rest-api/endpoints/class-wp-rest-post-statuses-controller.php';
 require ABSPATH . WPINC . '/rest-api/endpoints/class-wp-rest-revisions-controller.php';
+require ABSPATH . WPINC . '/rest-api/endpoints/class-wp-rest-global-styles-revisions-controller.php';
 require ABSPATH . WPINC . '/rest-api/endpoints/class-wp-rest-template-revisions-controller.php';
 require ABSPATH . WPINC . '/rest-api/endpoints/class-wp-rest-autosaves-controller.php';
 require ABSPATH . WPINC . '/rest-api/endpoints/class-wp-rest-template-autosaves-controller.php';