How to hide "Files" app?

I am using my nextcloud on my synology only for Mail, calender and contacts. Therefore I want to hide the “Files” app, but I couldn’t find a possiblity.

How can I do that?

Or maybe Enable only for certain groups… But I do not know how to do it.
If you use :
sudo -u www-data php occ app:disable files
it’s good or not ?

if the one from above doesn’t work (though i hope it does) try: download app “app order” and uncheck “files” under settings.