Same here, since I tried ublue, I can’t go back, it just works without a headache. I even made, very easily because of their great tools, my own personal ublue based “distro” which has all I need out of the box. I really like the immutable/flatpak concept and the ability to make your own version of it easily.

Exactly what I thought.

You may have a problem with your USB flash drive , I was also using bazzite to play elden ring and I got the same problem because of the latest NVIDIA driver updates so I rebased to bluefin gts which is a version behind and the only thing that works flawlessly. Rebasing is faster than installing another distro and doesn’t need a USB flash drive.