I'm actually immune to any visuals and auditory projected scenes. To the point of able to eat my meal while watching extreme gore.
At my more sensitive and vulnerable state, I can still dissociate.
Though do feel some discomfort, especially at certain specific characters in specific scenes that might upset or threatened them for entirely different reasons, one not involving related to worry or cringe but something else.
I won't tell which.
At worst I'd get jump scared, complete with physical symptoms.
So far, I never had a nightmare out of it.
And I rarely back out from anything until I finish the whole thing. Unless it gets really boring...
If it's no longer seeing a projected scene and no longer hearing stuff from the projected audios, no longer have screens as a 'source'... That's when I start worrying. That includes imagined creepy stuff that would make me rush into the light.