Remove gutenbur and wp-editor from Specific page

functions.php

function use_block_editor_for_post_disable_gutenberg( $can_edit, $post ) {
  if( $post->ID == '247' ) {
    return false;
  }
  return true;
}
add_filter( 'use_block_editor_for_post', 'use_block_editor_for_post_disable_gutenberg', 10, 2 );

// removes rich text editor for certain pages
function add_meta_boxes_remove_pages_editor(){
  if( get_the_ID() === 247 ) {
      remove_post_type_support( 'page', 'editor' );
  } // end if
} // end remove_pages_editor
add_action( 'add_meta_boxes', 'add_meta_boxes_remove_pages_editor' );