I finally took the time to move my gaming rig to Bazzite because I don't boot it that often, and because I don't want to spend half the little time I have for gaming doing updates and maintenance.

Most of my games are on an ext4-formatted secondary drive. Note: They worked perfectly on Manjaro and Nobara, the previous distros I used on this machine.

They are recognized by Steam, I can install and uninstall games just fine, it's just that... they don't launch. At all. Native or Proton. Like if I was on an exFAT partition. The "Launching" button switches back to "Play" almost instantly. If I move a game to my main home partition, it launches fine.

Has anyone encountered this issue before?

Where/how could I get detailed logs to try and pinpoint the issue?

Thanks!

Edit: Solved! The issue was with fstab configuration, always specify exec AFTER users, despite the doc telling you that order doesn't matter ;)

Wrong fstab entry :

UUID=blah-blah-blah /my/mount/point ext4 defaults,noatime,nofail,auto,exec,users,rw 0 2

Proper fstab entry (it's subtle):

UUID=blah-blah-blah /my/mount/point ext4 defaults,noatime,nofail,auto,users,exec,rw 0 2