The most accurate description that I've heard is that we're at the point where GUIs were in the 80s. The tech was just good enough for it and there were already several products on the market, but designers were still exploring the space and had not agreed on common metaphors yet. Which is exciting to witness, but shows that we're still squarely in the "early-adopter" phase of the curve.

(As for myself, I tried a friend's Oculus Quest extensively two weeks ago. Now I'm sitting at home, drawing up plans in Inkscape for how to rearrange my furniture to accommodate a room-scale VR area.)