Description: Switches back to the Classic Editor for posts and pages.
Hook: use_block_editor_for_post (filter)
How to use: Add it to your child theme’s functions.php or a snippet plugin. It takes effect immediately for all posts.
add_filter( 'use_block_editor_for_post', '__return_false', 10 );
Tested on
WordPress 6.8
Reported by the author on October 10, 2026. WPFolks has not verified this.
Not tested against WordPress 7.1.3. It may still work.