Mouslook doesn't work on PC

Is mouse look the ability look around while sitting in the car cockpit using the mouse? If so it doesn’t work in either FH 3 or 4. Also if it did work, there is a bug that causes inputs from the keyboard and mouse to interfere with HDR (and 21.9 ratio, maybe 16.9 also) on P.C. Probably caused by Windows 10.