The little portion at the top of the iPhone X series that cuts into the display to make room for speaker and camera is not accounted for in the GUI. As such movement controls aren’t fully accessible.

Yes, we are aware. Of course, back when the game was "letterboxed" inside the cutout, we then received frequent bad reviews that the game "didn't use the entire screen".

We cannot afford to re-design the UI in a custom fashion for every new device that comes out. Every manufacturer puts a notch, or a hole-punch, in a different location.

Some manufacturers are avoiding the issue entirely and have figured out how to put front-cameras behind the actual screen.

You can rotate your phone and use it to play the game the other way, if you'd like to shift which side of the control display has the cutout.