RaptorChrist on 22 October 2019
As Metallox said, it's very subtle gyro movements generally, but in games like Splatoon, there is only so fast you can spin the camera with the joystick, so if you want to do a quick 180 you would use both the joystick and the gyro at the same time since they are additive. I can't speak for overwatch, but Splatoon had a button (I think Y) which would re-center your orientation, which allows for those movements without a change in relative playing position.
Edit: I haven't experienced aim assist myself, but I can totally see how it could be better off disabled if you are being forced to compensate for an aim assist that is difficult to predict.
