Yes, but authenticity as value signaling, not as a commitment to behave without unnecessary layers.

I lived in a meditation center for a year, and I saw some people there that claimed to be authentic, and worked to look like the stereotype. But they were actually hiding a desire for materialism and the failure to live up to it behind the apparent choice of rejecting it.

Irony can be pretty ironic.

Style and looks is just what it is, a shell. And some people use clothing to augment what they are lacking in their character. And smart people can see through that.