I'm glad you continue to try it, I encourage anyone looking to have not-Windows options to try it. You can check compatibility of various titles with protondb if you're curious.
I have an Audeze Maxwell headset whose dongle was left in Xbox mode (which Windows was happy with) and so I spent 30 minutes debugging why it wasn't working in Linux until I flipped it to PC mode - which crashed PulseAudio so I had to restart it.
Dota2 has a native Linux client... but it suffers from microstuttering and that's just killing me. FPS is high as I have a 4080 but, man, the stutters are killing me.
Battlebit initially launched in a resolution so low that I had to guess through game menus to get it to my monitors native resolutions. It's just... small and annoying things.
I don't really mind, personally. I grew up using Linux. I don't mind doing these configurations and it's worth it to have a dev environment on my desktop computer. It's just that Linux isn't really "Microsoft competitor" ready when it comes to gaming. Valve has put in a bunch of hard work though. Huge kudos to Valve for getting Linux as far as its come. I hope the Steam Machine takes off and we see more hardware and game developer support.