The distortion of faces near the edges of iPhone photos is, in my opinion, the biggest issue with iPhone photos. So much so that I avoid being at the edges of group photos specifically for this reason. And it gets worse as you approach the edge of the frame. If you are barely in-frame, you will look like you've gained 30lbs and you've just had a stroke.
Easily solved. Next time have the photographer use the telephoto camera and make them step back a bit so everyone fits in the frame and the faces at the edges will be perfectly fine.
That’s a technical solution but not always socially viable for most of the situations where someone else is volunteering to take a group photo that I just happen to be in. And taking a picture of a big group in telephoto is often space constrained.
