This is not a formal document. Just making a comment and trying to address the questions.
Comment: We have had a few issues with home screen layout profiles. whenever possible, we split them out.
Home screen editing not allowed when using home layout. Apps assigned to a given page will go there. If a page is not filled with apps via layout profile, next app installed will go to the first available spot on the first available page.
Folders work as usual.
We always use a folder on the last page and title it 'Configuration'. We add Hub, preferences, and any other troubleshooting utility app.