Not op, but I have a very weak ability to visualise. The data is more abstracted. A map is a set of spacial connections that define an area. My brain has learnt to pull that from a map. What I can't do is recall the map to figure out additional information. If my brain didn't think it was relevant when I looked at it, the information is likely gone.
There are definitely pros and cons to it. I'm not limited to what I could visualise, when thinking. This lets me dig deeper into more complex ideas and patterns. It also makes other tasks a lot harder. I struggle a lot with faces and appearances.
As for the dogs, I have an abstracted "model" in my mind. The size and breed of the dogs is undefined. There are 2 dog entities in my mind. 1 brown, which is quite generic, the other has pink attached to it, that cross links it with poodles etc.
I can personally push it to a visualisation, but it takes significant mental effort, and the results are unstable.