If anyone wants to google the female FaceApp picture that Joe Rogan’s daughter made of her father, it shows you that the “transformations” created by these apps are not really legit.
They don’t reflect what is possible with surgery and hormones. Rather they conjure up a person that doesn’t exist from characteristics of the real person whose pic is being used as source material.
There is also a website called “This Person Does Not Exist” which uses generative adversarial networks to conjure up random fake images of people drawn from huge datasets of real photos.
As a programmer, I find these apps fascinating, but what is being conjured up is still a fantasy. The question then becomes “is fantasy a bad thing?”.
Sometimes, yes. Sometimes, no.