I use Linux because I like it, games are just a bonus. I've been Linux only before Steam came to Linux, and I'll be here if it ever leaves. It works well for me.
And you are a champion among men but there will forever be an obnoxious minority that will never be able to cope with the fact that other people don’t share their preferences.
Eh, just ignore those people, they're generally quite toxic. And it's not unique to Linux users, go to any windows-specific community/forum and you'll see similar fanboyism, they just say it from a different high horse.
My wife uses Windows, I use Linux, and I use macOS at work. They're all fine, I just prefer Linux. I have a Windows install as well in case I need it for any reason, though I haven't booted into it for a year or two (last time was to try to get Minecraft Bedrock set up for my kid for crossplay, but their friend ended up flaking).