Ah ok, I understand. The thing is though, this Epic deal sort of cuts a portion of potential consumer base who use Linux.
I just thought beta testing Sins 2 on steam proton is a golden opportunity, because if it can run on Steam proton, then the game can be run on virtually any platform without the developers needing to do additional work porting from one platform to another.
I was thinking of buying the pre-release technical preview but it's risky because potentially using the "Add non-steam game" function that is embedded in the steam app might throw a hissy fit if Epic has some sort of placeholder security that prevents games being added.
It's such a shame, because it would have been a really good time to test the game on Steam Proton and Linux ~ and give feedback to the developers.
I can run Sins: Rebellion and even mods on Linux with steam proton just fine. If anything, I've found that Linux is better than windows because it uses less operating system resources.