People with aphantasia have improved spatial memory that tries to compensate for episodic memory.

So the first thing that I feel when I try to remember something is my position in the room, or where the person speaking to me was standing.

Same thing if I try and ‘see’ a circle. I’ll just feel the dimensions. Hard to describe but it’s almost like pressure in my frontal cortex. A circle feels like coming down from the left and right in a circular pattern, whereas imagining a tree feels like the pressure is at the bottom pushing up.