re: Same here
I think you are right about the mind compensating. My mind has learned to judge depth when looking at the real world in 2-D (I lost my vision in my right eye 25 years ago). I have notice this carries over to 2-D pictures. I do see depth in 2-D pictures. I am sure it is not as realistic looking as 3-D pictures are to people who can see in 3-D. I can’t remember seeing the world as 3-D.
To judge depth, I think my mind compares object sizes. It is all automatic in my mind, and, not perfect, it works pretty well. And it is kind of cool to see depth in 2-D pictures.