Some games, unfortunately. Lots of devs are choosing not to join it, which is very silly to me to be honest. It has absolutely no impact on their sales or development. I bought the game on steam, they have my money. Why do they care what machine I use to run it? Better yet, why do they require I use my hardware? Blizzard famously (famously in the GeForce Now/cloud gaming community that is) pulled WoW without notice when people started playing it in larger numbers.

It’s very irritating.