I’ve had this happen on rare occasions with other games. Apart from what some ppl have been suggesting, sometimes a clean reinstall of the game just makes it work.

Don’t Starve (Together), Cuphead, Stardew Valley, Dead Cells, Hollow Knight

These are my current go-tos

If you want a good list of battery-saving games:

https://sharedeck.games/static/battery-savers

Heya, if you’re still having this issue, have you tried Proton versions other than the default (Experimental, I think)?