Hey, 1. Ye, for sure, just you will get much less downloads or rates (as not so many people got VRs) 2. Hard to tell, but from I've noticed on previous jams, there are not many people that got VR (it's worth trying to make a VR game on a gamejam tho).
sorry can't use vr until a week today but if you send a reminder in a week or so I'll test it out. If you do a vr jam game I'll test that at the same time.
also just to point out, you could try creating a vr game jam and seeing if some people join? Then all testers would be able to play. Not sure how many people are interested though
I made Shield Ball in the Dani Game Jam, but only got 3 ratings (and looked like they thought it was broken because it didn't work, while they probably didn't have a headset lol)