It's not really a 'feature', but it is part of their design language. The notch does make an iPhone instantly recognisable, and that makes their products walking advertisements. Just as the home button was and white AirPods are. Apple's use of squircles in their design language is a mildly interesting read.But so many on here believe the current Notch is supposed to be a design feature of current iphones! LMAO
And this is why I find their reported transition away from the notch confusing. They do not appear to be trading it for any screen real estate, and the rumour as posted is that they will change it again next year. Apple don't normally iterate design on such a short cycle.