@gamingonlinux try Outriders, if you did not already, was wondering how rhat was not mentioned so far. Comes pretty cheap these days but has an entertaining campaign and works perfectly with Linux.

And of course Everspace 2, different gameplay, yes, but very, VERY good game!

Another great play for me was Jedi Survivors, flawless Linux experience, just finished it two Weeks ago.

A far stretch, Borderlands 2. explicitly this one. 3 was not my cup oft tea, the pre-quel was kinda ok, too