Left click move camera and right click move camera aren’t the same thing, right click also turns your character if you’re moving while left click doesn’t.
I also have problems with accidentally changing my target when I turn the camera with left mouse button. I think the perfect solution to this issue would be for left click to change target on mouse UP instead of DOWN, and only if the cursor hasn’t moved much. This way you could use it to target but if you dragged it would only turn camera.