> If someone gets a major haircut or changes their hair color, they might as well be a different person to my brain, initially.

That is true aphantasia.

I don't have this aspect of the problem -- indeed, I often have the weird super-recogniser problem of correctly identifying that I have seen someone unknown to me before, and where. I might be able to even describe the clothes they were wearing that last time or something they were holding or doing.

But I would struggle to describe their face to someone else.