What is (virtual) reality
My quick definition:
Reality (as opposed to virtual reality) is what is able to be shared in its essential quality. Virtual reality is shareable but is missing some of the essential quality.
So it’s a moving target — subjective and context specific. If I’m having a conversation with you in a multiverse, the conversation is real and affective but the avatar is not. A chair in a VR environment may be real or not. It depends on how my intentions towards it match its affordances. BUT it is always real to itself and can become more real to me as I adjust to its being.