Hey there!
I am really astonished about the big amount of alternatives we’ve got in europe.
But I think this is a hard one: Steam.
I have switched from windows to linux a few years ago and I don’t plan to go back. Steam has the advantage of the integrated proton-service which allows playing many windows games on linux.
Do we have something similar?
~ sp3ctre
Besides gog there is also itch.io
Made by a single dude I think 'murican, but all drm free and stuff, mostly indie games, but also the big indie games. And linux client (albeit a little but buggy).