Collection of nextcloud "how to", step by step & documentation for users


I’m about to share some knowledge on how to use nextcloud (especially deck) with other people in different settings.

I was wondering whether there is a collection of presentations and other material on how to actually use nextcloud out there. Aimed at users, not admins.

Related to the use of nextcloud in schools etc. I guess it would be great to have a pool of good and informative instructions.

This should include a list of Apps and services that can be used with nextloud on different operating systems.

Thanks for hints and sharing your documents!