[Quoth]

Short version.

Current AR headsets can barely do AR. Headsets where you also have a real life view and video is superimposed.

Currrent VR headsets only just beat a Simple Display. Headsets that have no real life view without a camera. Lag is a big issue. All have a simple display mode that's just as if you have a (pair of) phone(s) in a box with lenses on your head for non-VR content.
Some can do a sort of AR mode by also having a camera(s) on the headset.

The sector suffers from hype and fake simulation videos. Quantum Leap used cinema CGI off-line to generate fake demos. I've seen video last week of Apple's system. It's a simulation / video edit, not a recording of what your eye(s) see. The resolution of the panels used is good, but otherwise it's nowhere near any sort of true AR or VR system. The only compelling use case seems to be to watch video or read stuff or play games very privately. Porn on bus / train / ship / aircraft? Hence many are being returned. There are solutions at 1/4 the price that let you do that. $3500 ex shipping, taxes etc!