I wouldn't spend a minute on it. Why bother with such an abomination when you can just use Linux the way it is intended to be used with less hassle and corporate superstructure that you most likely will never need.
If the Unity Editor runs best on Windows then maybe petition the authors to improve it? Otherwise you might end up in a Photoshop/Apple situation and we all know how that ended.
Good graphics drivers are available for Linux, and have been for years.
Access to bash tooling is the norm on any Linux system.
Wasn't Unity a Mac exclusive tool to start out? I know they have support for Windows at this point, and would understand if they've refocused on Windows since then.
Also a lot of useful 3d content creation software is Windows only, or only supports CUDA acceleration, so implicitly rules out Mac from being a first class citizen (e.g. substance painter)
Obviously not every game is the same, or needs fancy tooling. But Windows feels like it just works for game dev.
I have to agree. I love me some *nix (excluding Mac/iOS, actually), but game dev is the one thing I played with that just felt easier on Windows.