And all the fixation is on Epic vs Steam, but it has also been Epic vs GOG. Since their exclusive deals were prevented from being released on GOG too. Probably since people would actually be willing to biy from GOG if steam wasn't available with how hated epic is, and would have led to GOG growing as opposed to Epic.

A lot of people requested that DARQ be made available on GOG. I was happy to work with GOG to bring the game to their platform. I wish the Epic Store would allow indie games to be sold there non-exclusively, as they do with larger, still unreleased games (Cyberpunk 2077), so players can enjoy what they want: a choice.

https://medium.com/@unfoldgames/why-i-turned-down-exclusivity-deal-from-the-epic-store-developer-of-darq-7ee834ed0ac7