The PS5 controller has an accelerometer in it, similar to a phone. Motion controls are often used for fine adjustment of the camera. Call of Duty on the PS5 has these sort of motion controls, for example. AOE2 could also have similar motion controls for fine adjustment of the camera.
The motion controls could be disabled when in a menu or interacting with the minimap. This way you could move the controller back to a neutral position when the motion controls are disabled.