/* Disable title on all post types. */ 
  function your_prefix_post_title() { 
     $post_types = array('page'); 
     // bail early if the current post type if not the one we want to customize. 
 if ( ! in_array( get_post_type(), $post_types ) ) { return; } // Disable Post featured image. 
 add_filter( 'astra_the_title_enabled', '__return_false' ); 
 }
 add_action( 'wp', 'your_prefix_post_title' );