No they are not. You literally can’t set the base price of your game cheaper in another digital store even if they give you much better terms that Steam. And because Steam is so dominant you need to be on Steam, so you end up having to overcharge players that buy your game outside of Steam. In turn this removes an incentive for the players to buy the game elsewhere and preserves Steam’s dominance.
Why should Steam have a say on the price of games in GOG when GOG games don’t use Steam services at all?
Again, only if you use Steam keys, a Steam feature. Limited time sales are also still allowed on Steam keys. You can undercut Steam prices if you do not sell a steam key with it.
If you want to sell your game keyless on GOG for cheaper you can, and should.
No they are not. You literally can’t set the base price of your game cheaper in another digital store even if they give you much better terms that Steam. And because Steam is so dominant you need to be on Steam, so you end up having to overcharge players that buy your game outside of Steam. In turn this removes an incentive for the players to buy the game elsewhere and preserves Steam’s dominance.
Why should Steam have a say on the price of games in GOG when GOG games don’t use Steam services at all?
Again, only if you use Steam keys, a Steam feature. Limited time sales are also still allowed on Steam keys. You can undercut Steam prices if you do not sell a steam key with it.
If you want to sell your game keyless on GOG for cheaper you can, and should.