Unfortunately no, game pass games are packaged and installed similarly to Windows Store apps and games and heavily relies on Windows Store APIs. Proton nor wine will likely be able to replicate it for a long time (if ever)
You only have 3 options
A dedicated machine with Windows for gaming
A Windows VM with GPU passthrough (Some games' anti-cheat systems will trigger if it detects a VM, there are ways to harden a VM against it, but it's tedious and another cat and mouse game.)
Dual boot Windows and Linux
Technically, I am still setup to dual boot to Windows. But now that I've been off it for months, I really don't want to go back even for "free" games. It feels like a triumph to be off it and every day I don't go back into it when I can easily dual boot feels like a big middle finger to MS. I've been finding different ways to do that since the 80's when I used DR-DOS instead of MS-DOS. :-D
Pretty sure the only way is cloud gaming via Edge (which, yes, has a Linux version)
I didn't realize there was a cloud gaming option. I have Edge installed for work stuff (Teams and Outlook web) so I'll look into that option. Thanks!
EDIT - Looked into it, works surprisingly well! EXCEPT it requires a controller. Kinda the whole reason I want to play on my computer is to use KBM, otherwise I'll just use the ol Xbox. Oh well, maybe they'll improve it in the future. It's still a beta in theory.
Linux Gaming
Gaming on the GNU/Linux operating system.
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