I have a VR headset, but other than the one time I tried Skybox just to see what it looks like, it never occurred to me to take the headset out to watch a full length movie. It's just not worth it.
Makes me wonder how often people use it for "watching content on a gigantic screen at home", or it's just mostly theoretical in VR headset marketing material.
VR desktop: that's supposedly the "killer application" of Apple Vision Pro back in 2005 (and only usable on high resolution headsets like those). Guess what, these days nobody talks about it. I haven't seen anyone bringing it up on HN for a long time.