Agreed, I installed Ubuntu 22.04 last week to play with stable diffusion. Decided to have a quick look at steam / proton and was blown away with how easily it works. Fallput 76, my primary online game installed and run with almost no hassle. I even managed to get a long time irritation with runaway frame rates fixed.
The only glitch that remains unsolved is a hang on exit. Which is a known issue.
Just got Elite Dangerous running today on my fresh Ubuntu. Loaded the modules for the z52 hotas, copied my bindings from my windows instance and there she flies. That makes 3 out o3 for my most played games in Ubuntu.
So far ED is running flawlessly. I need an equivalent for ED market connector though. But that can be manual gor the moment.