As for the Ready Player One experience. There is a different issue to be addressed and that is the finite experience offered by modern day "games." Taking a look at Diablo Immortal and it should be clear of what little runway there is to live your life in VR. Experiences extended by lootboxes.
Even games that don't use that mechanism are bloated through artificial grinds. Economy resets and just lack of budget for story outside of 80hrs. Why even sink the development time in if you have the former to fuel profit margins?
There's a lot more to be said inside the scope of what XR is and how it will impact. And its not just comfort or accessibility preventing adoption. There is no killer app and it's the same with crypto. But that's more to do with the current limits of concepts we have relied on to get to this point.