I hear you except that apple controls all the screen sizes and zoom factors. They know right off the bat what it's gonna look like on all the screens in the wor

I hear you except that apple controls all the screen sizes and zoom factors. They know right off the bat what it's gonna look like on all the screens in the world because they have every screen this will show on... also if you forget zoom it's still only like 5 screen sizes: SE, 6, X, XS Plus, and XR. How did they not test this on 5 different screen sizes, of which two it's entirely un-intuitive?