Most games are apparently built like this. But there are two solutions: as you’ve said, making the UI configurable is one of them. (In KSP you can move the navball left and right on the bottom edge of the screen) Or the UI placement can be made with modern ultra wide screens in mind. W.g. the minimap is placed 40px from the right edge, unless the screen is an ultrawide one, then the UI is restructed to a box that is equivalent to a 21:9 (or 16:9) screen.