Ironically your comment has strengthened my belief that aphantasia is real and that I have it. :-)

The possibility of visualizing an apple with any of the details you describe is completely alien to me. Like, not "I can conceptualize something like that in my head but it's not SEEING", but "it is impossible for me to conceptualize that".

If you asked me to conceptualize an apple and asked me to add details like the color of it, whether it had a stem, etc. I would just be generating a mental checklist in my head. Vaguely like a running narrative, "I said it was a red apple. I said it had a stem. I said it had a bruise near the top."

But there's no sense in which I'm constructing a model in my head that I can consult, it's just a list of facts.

Every so often I've had discussions with people who do have a mind's eye and they've said something that just caught me off guard with its alienness. In your case the idea that when you imagine an apple it comes to you formed with a bunch of visual detail. I could only fill in details like that if explicitly asked (by myself or someone else). Or a friend saying casually "oh yeah I'm imagining her sitting over there to the left on that chair" - it had never occurred to me that people could visualize something with an actual location in space, or interacting with a real world object.