Developers speaking to the Game Developers Collective seem to think the VR games market has hit a roadblock, even with this year's launch of the Apple Vision Pro.
The force fields that allow you to walk in one direction without actually moving and hitting the wall also seem to still be missing in our RL tech tree.
The work these folks are doing is pretty cool. They utilize polarized light to allow for multiple viewing angles of holograms.
https://axiomholographics.com/