WordPress 5.8 will turn the classic widget screen into the block-based widget screen. While this is a transitioning move, it might create compatibility issues for some sites.
The following snippet can be used to restore the classic widget screen:
add_filter( 'gutenberg_use_widgets_block_editor', '__return_false' );
add_filter( 'wp_use_widgets_block_editor', '__return_false' );
In case it helps, here’s how to add custom codes in your site.
If you’d want to use it as a plugin, you can download the Classic Widgets plugin by the WordPress team.
That’s it. I hope this helps!
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Thank you!
Hi Sanjeev,
Nice job.
Our free plugin, with 22 tools, can restore the classic widget screen.
Download it from WordPress:
https://wordpress.org/plugins/wptools/
Cheers,
Bill
Plugin Developer