Why do you think it's a commercial failure?
But I don’t feel like I’ve missed anything by not having a VR headset. Like the product direction was very clear for oculus, had lots of buy in from devs… then it was bought by Facebook and became so much muddier. (“We’re going to use it in the meta-verse for boring work stuff” VR will be everything).
You need an exciting killer app for these things and they need to be commodity hardware. I’m guessing the best thing anyone could do for VR is give up all their patents.