Consoles are PCs, but that is totally irrelevant as they’re walled gardens with just a super-tiny fraction of all games there are.

You can’t narrow a definition to a limited subsection of what a PC is, simply because (ironically), some of them are locked down to block competiton

Of course one could. If you say “I’m PC-gamer” everyone knows you’re not on PlayStation or a smartphone. Despite them all, including wearables and my toaster, are kinda PCs.

If you ask gamers unprompted what the biggest gaming stores are, I guarantee that Xbox, Playstation and Nintendo’s stores will be mentioned

Mentioned of course. On top? I doubt it, but also lack data to prove it. Or the opposite. I know those stores too, despite only having had a console in the 80s (the Atari 2600) and a gameboy for a week.

Xbox might be a bit different, as to my knowledge, as you can also game their stuff on PC too with the same license.

Forced at gunpoint to get a console, it surely be steam deck. And I don’t even like steam. But it’s A) more than just a store. It’s a gargantuan gaming a community around a store. B) it made gaming on Linux totally viable