I have an Index also, one thing I find frustrating is that because the Quest has such a dominant marketshare and packages games differently, some smaller VR games and experiences I see seem to be only available as an apk file for Quest sideloading and there is no straightforward way for me to play them.

The main reason I don't use it more though is I never got past the physical discomfort, I still feel nausea playing most games for more than a few minutes, and headaches from the pressure on my scalp/face if going longer than that, ie. trying to watch a movie with the headset. So that basically means I'm not going to just spend a lot of time passively chilling out in VR, it has to be some specific thing I want to do that feels worth it to push through the discomfort involved and can be gotten through relatively quickly. Mostly that ends up being just Beat Saber.