A few years ago, my wife and I figured out she has aphantasia. Suddenly, it made sense why she has trouble with navigating, why I have to draw things for her so often rather than just explaining the shapes of the various parts and how they fit together, and also why she finds reading most books so boring.
When she reads a book, any description of how things look just goes in one ear and out the other. When walking around a city, she can't overlay a mental map over what she's seeing.
On the other hand, I've always had good 3D mental visualization, likely part of why I was drawn to Mechanical Engineering.