This is especially made clear by app designers who hide all the UI elements of the app in the corners of the screen. If they were truly concerned with ergonomi

This is especially made clear by app designers who hide all the UI elements of the app in the corners of the screen. If they were truly concerned with ergonomics AT ALL, they would adopt accessibility models such as this - https://medium.com/@mibosc/mobile-ui-ergonomics-how-hard-is-it-really-to-tap-different-areas-of-your-phone-interface-bb043d409af8 https://medium.com/@mibosc/mobile-ui-ergonomics-how-hard-is-...