I'm sorry to hear that. If it's possible, are there any error messages or similar stuff that happen when you crash? I'd like to get this fixed for my post jam update.
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It's probably not the problem of yours (sorry if it sounded like it is...), but the compatibility layer of wine/proton or how they work with unity. I am using Linux and Mac as the main systems, so I'm unable to run it properly. The error is "Unhandled exception: unimplemented function d3d11.dll.D3D11On12CreateDevice called in 64-bit code (0x006ffffffa2b40)."
As you said it isn't a direct issue with my game but with the compatibility layers. But this doesn't mean it isn't fixable, I just need to change some code and settings to get it working properly on those systems. So basically I should have it fixed for the post jam update, thank you for the reply!
Also quick suggestion if you do want to try the game out still (this also serves as a way to try out my fix), try running the game with "-force-d3d11"! So in steam it would be: Right-click game -> Properties -> Launch Options and then type in "-force-d3d11" without the quotation marks.