diff --git a/lib/compat/wordpress-6.3/theme-previews.php b/lib/compat/wordpress-6.3/theme-previews.php
index e73c13daa7cfb5..8894f5034ff5c8 100644
--- a/lib/compat/wordpress-6.3/theme-previews.php
+++ b/lib/compat/wordpress-6.3/theme-previews.php
@@ -112,18 +112,15 @@ function block_theme_activate_nonce() {
 	<?php
 }
 
-// Hide this feature behind an experiment.
-$gutenberg_experiments = get_option( 'gutenberg-experiments' );
-if ( $gutenberg_experiments && array_key_exists( 'gutenberg-theme-previews', $gutenberg_experiments ) ) {
-	/**
-	 * Attaches filters to enable theme previews in the Site Editor.
-	 */
-	if ( ! empty( $_GET['theme_preview'] ) ) {
-		add_filter( 'stylesheet', 'gutenberg_get_theme_preview_path' );
-		add_filter( 'template', 'gutenberg_get_theme_preview_path' );
-		add_filter( 'init', 'gutenberg_attach_theme_preview_middleware' );
-	}
-
-	add_action( 'admin_head', 'block_theme_activate_nonce' );
-	add_action( 'admin_print_footer_scripts', 'add_live_preview_button', 11 );
+/**
+ * Attaches filters to enable theme previews in the Site Editor.
+ */
+if ( ! empty( $_GET['theme_preview'] ) ) {
+	add_filter( 'stylesheet', 'gutenberg_get_theme_preview_path' );
+	add_filter( 'template', 'gutenberg_get_theme_preview_path' );
+	add_filter( 'init', 'gutenberg_attach_theme_preview_middleware' );
 }
+
+add_action( 'admin_head', 'block_theme_activate_nonce' );
+add_action( 'admin_print_footer_scripts', 'add_live_preview_button', 11 );
+
diff --git a/lib/experiments-page.php b/lib/experiments-page.php
index 9e31815f3f50ff..e92712f6162e99 100644
--- a/lib/experiments-page.php
+++ b/lib/experiments-page.php
@@ -89,18 +89,6 @@ function gutenberg_initialize_experiments_settings() {
 		)
 	);
 
-	add_settings_field(
-		'gutenberg-theme-previews',
-		__( 'Block Theme Previews', 'gutenberg' ),
-		'gutenberg_display_experiment_field',
-		'gutenberg-experiments',
-		'gutenberg_experiments_section',
-		array(
-			'label' => __( 'Enable Block Theme Previews', 'gutenberg' ),
-			'id'    => 'gutenberg-theme-previews',
-		)
-	);
-
 	add_settings_field(
 		'gutenberg-interactivity-api-core-blocks',
 		__( 'Core blocks', 'gutenberg' ),