This really depends on the friends you have. I've never encountered this limitation because no one in my friend group plays competitive ranked games. Basically anything with private sessions doesn't require anticheat, so Valheim, RV There Yet, Deep Rock Galactic, etc. all work fine.

Sure, that helps.

But even then, when everyone is trying out a new indie game there’s a chance it won’t work on non-Windows. It’s happened to me.