I think Epic is also blind by the thing that people won't have much problems with playing it through game pass/win store, they only don't want to use EGS.
Wow. If this actually turns out to be true, Microsoft will be getting a lot more money from me in the future.
It's what I suspected all along with Ubisoft and now the Microsoft Store. The "exclusivity" contracts specifically target Steam and not the wide platform.
Here for example