"true" lol. Does anyone here even know what "gnostic" means?
I just looked up
"Gnosticism (after gnôsis, the Greek word for “knowledge” or “insight” ) is the name given to a loosely organized religious and philosophical movement that flourished in the first and second centuries CE."
given there was never any such person he can look like whatever your imagination can dream up.
British scientists only tried to figure out based on a skull found from the times how man may have looked like but it was not Jesus.
The question of why christians believe any fantasy begs the question.