diff -r 48c4eec2b7e6 -r 8c2e4d02f4ef wp/wp-admin/edit-form-blocks.php
--- a/wp/wp-admin/edit-form-blocks.php	Fri Sep 05 18:40:08 2025 +0200
+++ b/wp/wp-admin/edit-form-blocks.php	Fri Sep 05 18:52:52 2025 +0200
@@ -51,17 +51,16 @@
 
 $rest_path = rest_get_route_for_post( $post );
 
+$active_theme                   = get_stylesheet();
+$global_styles_endpoint_context = current_user_can( 'edit_theme_options' ) ? 'edit' : 'view';
+$template_lookup_slug           = 'page' === $post->post_type ? 'page' : 'single-' . $post->post_type;
+if ( ! empty( $post->post_name ) ) {
+	$template_lookup_slug .= '-' . $post->post_name;
+}
 // Preload common data.
 $preload_paths = array(
 	'/wp/v2/types?context=view',
 	'/wp/v2/taxonomies?context=view',
-	add_query_arg(
-		array(
-			'context'  => 'edit',
-			'per_page' => -1,
-		),
-		rest_get_route_for_post_type_items( 'wp_block' )
-	),
 	add_query_arg( 'context', 'edit', $rest_path ),
 	sprintf( '/wp/v2/types/%s?context=edit', $post_type ),
 	'/wp/v2/users/me',
@@ -72,9 +71,44 @@
 	sprintf( '%s/autosaves?context=edit', $rest_path ),
 	'/wp/v2/settings',
 	array( '/wp/v2/settings', 'OPTIONS' ),
-	'/wp/v2/global-styles/themes/' . get_stylesheet(),
+	'/wp/v2/global-styles/themes/' . $active_theme . '?context=view',
+	'/wp/v2/global-styles/themes/' . $active_theme . '/variations?context=view',
 	'/wp/v2/themes?context=edit&status=active',
-	'/wp/v2/global-styles/' . WP_Theme_JSON_Resolver::get_user_global_styles_post_id() . '?context=edit',
+	array( '/wp/v2/global-styles/' . WP_Theme_JSON_Resolver::get_user_global_styles_post_id(), 'OPTIONS' ),
+	/*
+	 * Preload the global styles path with the correct context based on user caps.
+	 * NOTE: There is an equivalent conditional check in the client-side code to fetch
+	 * the global styles entity using the appropriate context value.
+	 * See the call to `canUser()`, under `useGlobalStylesUserConfig()` in `packages/edit-site/src/components/use-global-styles-user-config/index.js`.
+	 * Please ensure that the equivalent check is kept in sync with this preload path.
+	 */
+	'/wp/v2/global-styles/' . WP_Theme_JSON_Resolver::get_user_global_styles_post_id() . '?context=' . $global_styles_endpoint_context,
+	// Used by getBlockPatternCategories in useBlockEditorSettings.
+	'/wp/v2/block-patterns/categories',
+	// @see packages/core-data/src/entities.js
+	'/?_fields=' . implode(
+		',',
+		array(
+			'description',
+			'gmt_offset',
+			'home',
+			'name',
+			'site_icon',
+			'site_icon_url',
+			'site_logo',
+			'timezone_string',
+			'url',
+			'page_for_posts',
+			'page_on_front',
+			'show_on_front',
+		)
+	),
+	$paths[] = add_query_arg(
+		'slug',
+		// @see https://github.com/WordPress/gutenberg/blob/e093fefd041eb6cc4a4e7f67b92ab54fd75c8858/packages/core-data/src/private-selectors.ts#L244-L254
+		$template_lookup_slug,
+		'/wp/v2/templates/lookup'
+	),
 );
 
 block_editor_rest_api_preload( $preload_paths, $block_editor_context );
@@ -113,6 +147,24 @@
 	'wp.blocks.unstable__bootstrapServerSideBlockDefinitions(' . wp_json_encode( get_block_editor_server_block_settings() ) . ');'
 );
 
+// Preload server-registered block bindings sources.
+$registered_sources = get_all_registered_block_bindings_sources();
+if ( ! empty( $registered_sources ) ) {
+	$filtered_sources = array();
+	foreach ( $registered_sources as $source ) {
+		$filtered_sources[] = array(
+			'name'        => $source->name,
+			'label'       => $source->label,
+			'usesContext' => $source->uses_context,
+		);
+	}
+	$script = sprintf( 'for ( const source of %s ) { wp.blocks.registerBlockBindingsSource( source ); }', wp_json_encode( $filtered_sources ) );
+	wp_add_inline_script(
+		'wp-blocks',
+		$script
+	);
+}
+
 // Get admin url for handling meta boxes.
 $meta_box_url = admin_url( 'post.php' );
 $meta_box_url = add_query_arg(
@@ -130,6 +182,15 @@
 	'before'
 );
 
+// Set Heartbeat interval to 10 seconds, used to refresh post locks.
+wp_add_inline_script(
+	'heartbeat',
+	'jQuery( function() {
+		wp.heartbeat.interval( 10 );
+	} );',
+	'after'
+);
+
 /*
  * Get all available templates for the post/page attributes meta-box.
  * The "Default template" array element should only be added if the array is
@@ -159,9 +220,12 @@
 	if ( $locked ) {
 		$user         = get_userdata( $user_id );
 		$user_details = array(
-			'avatar' => get_avatar_url( $user_id, array( 'size' => 128 ) ),
-			'name'   => $user->display_name,
+			'name' => $user->display_name,
 		);
+
+		if ( get_option( 'show_avatars' ) ) {
+			$user_details['avatar'] = get_avatar_url( $user_id, array( 'size' => 128 ) );
+		}
 	}
 
 	$lock_details = array(