The Apple Vision Pro front screen feels like an initial clunky attempt at trying to make this easier by giving an obvious indicator when somebody is off in their own world vs actually looking at you... though as UX design it's a good 10 years ahead of the hardware, since nobody's ever going to be casually wearing AVP in a coffee shop.
VRChat, of all things, has some interesting experimentation going on in this space. For example, there are avatars that will link up with your other SteamVR apps to show a placeholder screen or other indicator on the avatar when you have an overlay floating window active that's totally separate from VRChat.
VRChat, of all things, has some interesting experimentation going on in this space. For example, there are avatars that will link up with your other SteamVR apps to show a placeholder screen or other indicator on the avatar when you have an overlay floating window active that's totally separate from VRChat.