It feels different when a game has a server and a client component. I can choose to airgap my ancient Macbook and never update it if I want to keep playing that particular game on that particular computer.

I can also play it on Linux, and Linux can run on Mac hardware.

All of that sounds like a pain in the ass, and if the game is not worth the trouble I'll just not go through the trouble. But I am the one who makes the choice, not the owner of some proprietary server.