Without rigorously researching the phenomenon, I’d put myself in the 2, edging towards 3 - I can visualize things with however many details I can see with my own eyes if I focus a little, but instinctually I only see vague shapes that serve their purpose in whatever scenario I’m thinking of.
I can rotate objects and remember the back-face details;
I can picture a moment from a story I was reading, where a bipedal nocturnal lizard in a cramped spaceship violently recoils from having a flashlight pointed at its eyes;
I cannot quantify the spacing between its eyes compared to the height between those and the tip of the nose as seen by a front-facing isometric projection, even if it’s all a fiction and I could just make things up.

Basically my mind is running Unreal Engine 5 with medium settings, low LOD and AI generated textures - which would also explains a lot of other things now that I think about it.