You don’t have to look far to find reports of people who have used VR headsets and then felt ‘off’ after removing them. While motion sickness is surely the most well-known post-VR symptom, a subset of people say they have experienced feelings of being ‘stuck in VR’ after taking off their headsets. It’s tempting to brush off such reports as someone having seen The Matrix (1999) one too many times, but it turns out there is a clear scientific basis for the sensation.
Graphics don’t matter as much as the quality of interactions. I had to get used to my real life hands after playing Superhot VR for too long for example.
Makes you remember that your brain is piloting a meat mecha basically, and all the sensations of what is real come from different sensors around the body connected by electrical wires (nerves), and some parts constantly need calibration.