The 'chin' on newer Android phones is pretty thin anyway. And with gesture navigation becoming more common (see the newest Pie version, but plenty of OEMs offered gesture navigation before), starting the gesture from the "chin" (outside the touch area) is a nice convenience. The newer iPhones have that horizontal line at the bottom anyway, so it's not even clear what the cleanest design is.
Yeah I actually don't mind it at all. Just saying there's extra hardware (and R&D) expense in doing it Apple's way, in terms of the production cost of those two phones.
