https://unity.com/solutions/mobile-business/game-foundation#preview-package-available-now
- from what I've learned, no - not mobile only, but as that is where IAPs (which is includes a lot of references to) are most natural right now, that is where it is centered.
Can I use it for microtrans with cosmetic items in pc games?
https://docs.unity3d.com/Packages/com.unity.game.foundation@0.1/manual/GFTutorial.html