Quicktime VR found its niche later on. There were camera attachments for 360 lens "simulations" where you could shoot a scene and have it in QTVR. There were postcards (physical with CDs) with those.

I remember this though https://vimeo.com/97806117 which was more of a VR. We even had stereo glasses on workstations. There was also IO Glasses, later on, for PCs. https://www.youtube.com/watch?v=YbNUIwi5F6g This was more like VR, not like QTVR. It gave you a dizzy spell and/or a headache after 15 minutes or so. It was worth it when playing Dark Forces with it though.

edit: I just remembered. IO Glasses cost somewhere about 1600 Deutsche Mark (around 800 Euros) and thing sucked, but not by much. I might still have them somewhere!