How to return old WordPress widgets. Code example

In WordPress 5.8, a new widget system was added – block widgets. Not everyone liked the new system, and some prefer to continue using the old block editor. To return the old block editor, add the code below to your file function.php:

add_filter( 'gutenberg_use_widgets_block_editor', '__return_false' );
add_filter( 'use_widgets_block_editor', '__return_false' );