The author mentions the "Squircle" but doesn't mention the actual reason this has made an appearance in iOS. Apples Industrial Designers use this shape for corn

The author mentions the "Squircle" but doesn't mention the actual reason this has made an appearance in iOS. Apples Industrial Designers use this shape for corners on their laptops because the reflection is creates is a smooth gradient across the entire curve of the laptop, if you use a basic bevel it creates an ugly hard shine. So the reason this has moved to iOS is because the ID team and Ive have much more influence there than they did in the early iOS days. As for the notch and the screen edges my personal belief is this is all down to industrial designer bravado. The brief for the iPhone X is "Equal margins on all edges at any cost" this is why Touch ID had to go and they justify the notch because to the left and right of it there is a margin to the device edge that is equal to the bottom and the sides of the device so in the Industrial Designers eyes they have achieved the perfect symmetrical device (Look at Apples recent laptops to see how much emphasis the current put on symmetry above all else). My theory is the ID team at Apple would look at the "edgeless" Galaxy S8 screen and scoff that it's not truly edgeless because the margins are uneven.