A few more that may not be mentioned:

Dandara - fun platformer

Ion Fury - throwback to 90s shooters, good if you can handle some juvenile humor.

Knights and Bikes - played through with my daughter and we loved it.

Spiritfarer - low pressure gameplay, story and exploration focused (edit: sorry, runekn already mentioned this one)

I have been using Nextcloud since 2018. Installed on an old (Athlon X4 860k) Debian/Devuan machine. Currently just have Apache setup correct, initial install with the source tarball, and use the offline installer to update. I mostly use it for News reader and picture backup. It has given me very little problems.