Back to Normal Widgets is a simple plugin that restores the classic widgets settings screens and disables the block editor from managing widgets.

With this plugin activated, you can continue to use the traditional widgets settings screens to add and customize widgets on your WordPress site.
The block editor will no longer be able to manage widgets, and the “Customize” menu item and button will be removed from the WordPress dashboard.

There is no configuration required – simply install and activate the plugin to restore the classic widgets settings screens and disable the block editor for widgets