Why do you think it is that we often feel so strongly that certain people "look" or "don't look" like their name? Like, oh you look like a Brian or oh she doesn't look like a Chloe. Do you think there are actually certain features associated with certain names? Is it just confirmation bias? Both? Neither?
on some level, there are some intrinsic qualities of visual appearance which may intrinsically match with some intrinsic qualities of some phoenetics. (i deeply apologize for using the word intrinsic 3 times, but upon further review i'm confidident that i needed it.) On top of that, there may also be some association happening with other people who have had that name. However, i should add, how people seem to 'look' is almost always heavily influenced by how they act, and how they carry themselves, and their personality in general. And personalities, also, may seem to intrinsically match with certain phoenetics. and this likeness may grow stronger over time, as people embrace (or, if needed, alter) what their name is