My sister has #5 and I can ask her to make a response if you want OP.
Last we talked about it she said if she tried really hard she can see come colors and shapes but that's about it.
The best conversation about it we ever had went something like this (keep in mind were both autistic and when together dont always communicate like neurotypical people do):
*while driving*
her: "get in that turn lane to the right"
*i do the πhand tricks and turn*
her: "when I don't want to do that I always think in my head 'never eat soggy waffles' and remember that east is left and right is west"
me: "that's not even correct,, but like WHY would you do that??"
her: "to remember how to turn"
me: "why wouldn't you just do the hand things?"
me: "like imagine them in your head and-"
her: "MUST BE NICE HUH?"
*we both explode in laughter*
she didn't even mean to make a joke about it, that's just genuinely the way she remembers lefts and rights
also this meme has become a common occurrence whenever the topic is brought up

Also a pretty interesting thing I remembered while writing this is a clip on TV (can't remember what show it was) where they asked a room of people to draw a bicycle then they made it IRL by welding it and told them to ride it a block or two and back. Only 1 of ~15 did it correctly, one girl got it exactly but forgot the peddles. Pretty interesting how they could all imagine a bike but couldn't draw it correctly
