I’m confident that the left result is Autopo, as I see a six-sided singularity (shared vertex between six edges), which as far as I know never happens in ZRemesher / Quad Remesher. Such a singularity remains a visible artifact after subdivision.
But other than that, the overall topology flow and quad face distribution looks better in Autopo. There also seems to be no edge loop spiraling around the eye cavity, while the ZRemesher result does suffer from edge loop spiraling there. But the mouth cavity is better defined in the middle result, assuming that is Quad Remesher.
I did this comparison years ago: