Last time I tried to play Stray on Linux Mint on my laptop while connected to 4k TV, I ran into severe degradation unrelated to thermal throttling. I had to tweak the resolution down a lot and even the graphics. I recently went back to using Windows on the laptop because of an unrelated network speed unreliability problem on Mint, and when I tried Stray, there were no issues. Before this, I had even installed Stray on my gaming PC to stream from the laptop because of how laggy the performance was.
Specs
RTX 3080-Ti Laptop AMD Ryzen 9 6900 HX Linux Mint latest 16GB RAM
EDIT:
Okay so I suspected it was thermal throttling, even though I have a cooling fan. Turns out not using a cooling fan is better than using a cooling fan at the lowest setting. At the highest setting, the cooling fan is too loud but the game performs still slightly worse than on Windows.
when I first switched to linux it was on a hybrid laptop also and it was with Mint. Nothing but issues. once I switched distros (cachyos) no issues.
Why? x11/wayland. X11 has issues with hybrid setups. just doesn’t work right at all. for me if I was playing a game and tabbed out of it and back it would either just show a black screen or simply show the desktop while hte game was still running. Once I switched to CachyOS (and thus a wayland DE with KDE or a wayland WM) no issues.