One of the hardest problems in VR has been locomotion -- how do you move from place to place in a way that's seamless and fluid? Even Half-Life Alyx struggles hard with this. You'll notice that whenever anything cool is going on, they have you put your hand on some pillar or controller to keep you from wandering off.

Beat Saber is probably the best app for VR, because it solves that problem by not having any locomotion. The world locomotes to you.

But that works well for an abstract rhythm game. I don't know how well that works for anything else.