I've gotten into a few lighthearted arguments with a friend over this. They're strictly at 5 while I consider myself a 1 and it causes a lot of difficulty with communication.
I used to be convinced that the issue with this topic was that people were interpreting the question differently. Like obviously I don't literally and physically SEE an apple like some kind of projection, but maybe people who think they're a 5 are interpreting the question like that. With how prevalent the discussion is, though, I've had to accept that's probably not the case, lol.
Either way, it's hard to imagine being anything other than 1. I can turn the apple around, change its colors, texture, zoom in and out, etc. That being said, I can't exactly see the end result of whatever I'm about to draw when I'm just starting. Sure I've got the camera angles and posing more or less there, but there's still an element of unpredictability that comes from execution and my ideas just changing on a whim throughout the drawing. That's the kind of thing that's hard to visualize ahead of time because I just don't know what I'll do until I get there.
On the plus side, I think not being able to see a drawing ahead of time is what makes it exciting to draw in the first place.