Legacy design: Interface

Simple example would be that an interface suited for gamepad is carried over to desktop PC platforms (Windows, Mac, Linux, etc.). Such as selection is done only by scrolling a list of items instead of directly clicking on one of the items, only partially responsive UI to mouse events, or similar.

Unlike legacy design with controls, these otherwise feel perfectly fine with the platform's standard controllers (though there's potentially some overlap if the game is fully about interacting with an interface rather than character control or similar).