Steam

Valve has made it so I can game entirely on linux. I remember when Steam started and I hated it, I didn't want an account. But after all these years its been nothing but ways that benefit me.

I like GOG but they can't be bothered to even create a library tool. Yes third party ones exist, but you would think they could at least try.

And in the end, if it all goes away, it was just games. Not like I couldnt get them back if I really tried, and if you really wanted to do something about it, you CAN archive your steam library.