If you play AAA games with kernel anti-cheat then Wine and Proton are basically non-starters. Cant sidestep that a vast majority of people want to play those games.
Just browse the Deck Verified page for example: https://www.steamdeck.com/en/verified & https://store.steampowered.com/greatondeck/
Forza Horizon 6 and Assassin's Creed Black Flag Resync'd are both listed, and both are very recent, major AAA game launches. With top-tier Linux compatibility.
It is staggering how different the situation is now as compared to just a couple years ago. Steam Deck (and associated investments by Valve) are damn near a revolution. It's a perfect storm of the incumbent turning to shit at the same time the underdog really got its act together.
If you or your friend group is really into a game that doesn't have Linux support yeah that's a bummer, especially when it's just because of the kernel level anticheat that's horrifying in its own right (triply so when it's for a PVE game, cough cough, helldivers 2, cough cough). But I don't think that's most people anymore. The more casual and indie game scene these days is huge, and of course single player games in general continue to be super popular.
Kernel-level spyware, and Wine/Proton are the non-starters?
I don't think you and the person you replied to will reach an agreement.
Lots of people don't play them. It's not like we don't have a choice.
CoD
Unsure of Blizzard games