If your instance allows users to create communities, in this case, i believe yes, you can find it on the header "Create Community"
back then, when I'm still in Indonesia, my family never drink tap water, in my area, tap water was kinda yellow due to mixing up with iron, for consumption purposes, we usually bought gallons and they can be refilled/swapped at the nearest water station, but now in Australia, i usually drink tap without boiling and been doing this for 5 years+
bought Spiderman Miles Morales on Steam last week, but haven't touched it, probably Sun Haven as well
i read owncloud infinite scale (OCIS) few days ago, i wanted to try it this weekend, and if you’re looking just only file sharing, this might fit for you,
or nextcloud docker / nextcloud install with redis and tuning, and remove the features you don’t need
try Hetzner, choose east or west US based on your users location