I choose not to use Windows. I have also had very few problems running games on Linux. Why would I carry on using an OS that is bloated beyond belief and where the customer is the product when I can quite happily play my AAA games on an OS that respects my privacy, doesn't try to force crapware on me and doesn't constantly have to deal with buggy security updates?
Windows is not always best for gaming either. I have seen plenty of reports of games running better on Linux than they do on Windows with fewer issues (a quick internet search is all you need), and the ones that do have issues tend to be the aforementioned games using things like EAC where the developer has specifically made it difficult (or impossible) to run on anything but Windows.
While there may also be hundreds of Linux distros, giving the user a choice of how they use THEIR computer, I personally tend to stick to major Debian DEs that are very well supported so I don't have any issues at all getting support if the need arises.
As for Planetary Annihilation, I have both the original game and the TITANS standalone expansion and have never seen either crash.
If you want to feed the MS machine then that is your choice but please don't try and tell me how I should use my PC or that gaming on Linux isn't a thing anymore. If you haven't tried it in the last year or two then your opinion is irrelevant.