block editor – How to find out whether a plugin is used in pages or posts?

I need to find whether any element of the so many Gutenberg- or Elementor-elements have been used in posts or pages.

I want to deactivate an Elementor Addon Plugin, which creates accordeons
I need to know where this Addon Plugin was used in posts or pages, if not I can deactivate / delete it, if yes I have to replace the output by other elements

Unfortunately I never saw something like a “used in”-list

Any ideas please? I would be happy!