I have to recommend https://shadow.tech!
It is a Windows VM intended specifically for (but not limited to) gaming!
And it works extremely well, I am playing games on it for ~ 2 years by using their client app on Linux.
I only recently got mine last week and I love it. The CPU is a bit underpowered but the GPU is so much better than what I have in my PC and I’ve been able to play a bunch of more recent games that I wasn’t able to before. Also much prefer the freedom to install what I want over services like GFN or Stadia.