For me, I have been dual booting, but I have also had my linux set up for a few months now and was using it exclusively until i got my quest 3.
I can definitely see the allure of just sticking to windows if one plays pcvr exclusively or if one just hasn't taken the plunge into linux yet.
I really do hope that support comes. Either officially or unofficially by a linux savant who knows this stuff.
My observations:
Existing companies do tend to (but not always) stick with their legacy stack. It makes sense, it's the safe option.
Start ups OTOH, have the freedom to choose a new and innovative stack and often do. Sometimes it works, sometimes it doesn't. The ones that survive and thrive will likely be dated in another decade and be seen as the old guard with legacy stacks.
It's the circle of life.