I prefer GOG but not enough to not buy from Steam. And each store has its pros and cons.

As a single player gamer, I love the DRM free nature of GOG, especially for classic games like Rollercoaster Tycoon or SimCity 3000. I have older PCs lying around and being able to play my games on them is very very nice.

On the other hand, updating my game is a chore and GOG Galaxy while cool isn’t polished, and very buggy especially only Linux via Wine. I wouldn’t even consider online multiplayer games unless it had its own server.

Compared to Steam which works with Linux by default, no Lutris or Bottles configuring to get games to work. Updates are seamless and online multiplayer is built into the client. Let alone remote play, steam families, big picture, and all the other features it does.

My only gripe with Steam is the GIANT question mark on what happens to my games when they pull support. I mean I can’t even play my older games any more on my old Windows 7 machine, and its not like Fallout 3 is getting updates.

So my priority is thus: GOG then Steam, if its single player and the price is similar (±$10). Steam then GOG if it makes sense or I need steam features (I.e. I got Stardew Valley on Steam since my SO has it there too and we can play together). Finally if the game is around $5 get it on either, or maybe both if I like the game.