Good quality Nvidia drivers and support for games, mostly.
Did you get w3champions (https://www.w3champions.com/) running as well? I had a quick look but it didn't seem that straightforward.
Quite a few that use other launchers are "plug and play" installs with lutris (like WoW).
My favourite games all do, but I'm already using consoles exclusively for my gaming because I was unhappy being held prisoner.
People look down on me for it, but the way I see it: my computing experience is not keeping me prisoner; and I value my time too much to dig about certain issues, you're guaranteed to suffer the "my FPS isn't so good I will investigate" or "this game doesn't run so I will investigate" situations.
Cheats are less common too, so there's less incentive for kernel anti-cheat, and if there was: it would be contained to my "game computer" anyway.
I don’t have to worry about downloading a game launcher riddled with telemetry or wait 6 months after launch for a PC port to reach a playable state.
Imagine if most cars were modeled after Lamborghinis and people complained about the lack of turbo or carbon seats when hopping on your Honda Civic.
Imagine if most parks were modeled after football fields and people complained about the lack of goals and lines in your backyard.
Imagine if most knifes were modeled after big damascus blades and people complained about your table knifes when they come for dinner for not being cool and sharp enough
If you gave me a dull knife to carve a turkey or fillet a fish, I would definitely complain about it not being sharp enough. Most people probably have a sharper knife than a table knife for cooking, is that a sharpness obsession?
It's about picking the right tool for the job. On my home server, I run Linux; my gaming computer runs Windows. If you wanna keep going with the knife analogy, look at how many types of kitchen knives there are. There is no knife that does everything just as well as all the others. Asking for a bread knife for cutting a loaf isn't an attack on every other knife.
If someone is trying to set a lap record, a Camry probably isn't a good choice either. Still works well for getting groceries though.
I don’t think I’m obsessed with gaming but it is a hobby and if I have to boot into Windows to play, so be it.