This is not correct. Most distributions (and installs) of linux are not significantly different (within a distribution itself/version). RHEL is RHEL, Ubuntu is Ubuntu. Versions are akin to say Windows7 vs Windows 10. It can be compared to how some installs of Windows are customized (e.g. personal reasons, for Corp IT reasons, etc). There are exceptions such as gentoo, but most distributions are very consistent. Source: My day job is development on linux platform(s).
There is more flexibility in linux that windows in some ways. But many many many people use the standard installations
There is a person who successfully got OverWatch to play under the Steam
(Proton) compatibility functionality. I don’t think Windows is “garbage” and I am a hard-core open source linux advocate. But to each their own.
See this topic:
It seems to work smoothly and cleanly. I’ve not played much with it, but it’s looking good.
Don’t expect an official Linux port. There isn’t a Mac port, this game is very much focused on windows. See: Linux port for overwatch - #50 by BillWarnecke