Limit the Blocks Available in the Widget Editor
Restricts the block widget editor and the Customizer to a short list of blocks that make sense in sidebars, keeping widget areas tidy for clients.
Snippet Library
Widgets snippets for WordPress
Snippets for widgets and sidebars: restore the classic widget screen, register new widget areas, remove default widgets and allow shortcodes in text widgets. For classic themes and sites that still lean on sidebars.
Use the Classic Widgets Screen
Restores the classic Widgets screen and Customizer widget panel instead of the block-based widget editor.