Devil’s advocate here. Huge drawback is a relative POV considering the vast majority of people who play computer games do so on Windows, using Steam. I feel it worth mentioning that the HN crowd may be biased in ways that your other users don’t care about. Joe Schmo on Windows using Steam doesn’t care if you expand out to Epic Games on FreeBSD or whatever instead of adding more featurez. Best of luck with your app, it looks cool :)
Thank you very much! My feeling is also similar to yours, that is why I initially purely focused on Steam platform though even for Steam platform our audience is kinda niche I feel like but let's see what the future will bring.