If you compare the current PTS version with the live one - the camera mode is debugged. If you plainly move the mouse around to find the cursor, you will mess up your camera. So being able to see mouse cursor in the new version (slightly better helps) will be appreciated. And yes, you have in the PTS version a much better way of controlling your camera angle on PC.
Other option: Holding down right mouse button on PC is always "move camera", NOT doing that is always mouse mode. So no discussion which mode you are in. Currently its a "mix up"