I am attempting to make my custom post editor full page, like the Gutenberg editor. With no side menu or the meta boxes. I was thinking that in order to do that, I need to override the editor template somehow, but I have not find any way to do that.

According to https://developer.wordpress.org/themes/template-files-section/custom-post-type-template-files/ there are ways to override single-{post-type}.php, archive-{post-type}.php and index.php. But none of those are used for the editor.

So, how can I modify the editor template (for my plugin only) AND/OR make my custom editor full page?