I’m not sure about a 3D cursor, but the solution seems to be for most people to do a trace for what you’re looking at. Or a trace from the motion controllers if you have those.
I’m interested in seeing if there’s an easy way for a 3D cursor too.
I feel like they de-emphasize mouse use as much as they can because it makes some people nauseous. I find that a shame. The best VR games, imo, use the mouse. For me it’s just the most immersive. But even Unreal doesn’t seem to play well with it… you can move your mouse off screen for example and if you click it unfocuses the game. Really annoying. Interested in a solution to that, too.