I think the bulges are because everyone’s using a case anyway, so they may as well bump out. Unless someone’s doing the “I care so little about protecting several hundred dollars that I use an expensive phone without a case” thing.
My reason is that I never sell phones anyway, after 2 years I get a new one and give the old one to a cousin or something like that.
1. https://www.etsy.com/uk/listing/1303285181/leather-google-pi...
You've got to specifically look for one that has raised corners or something to compensate.