If you want to get technical, remember that the Airbus FBW is not maintaining a 1G flight path throughout the entire flight envelope. This only applies to higher than approach speeds.
Below this, the FBW algorithm will blend a pitch hold / G load mode down to a certain speed at which point it will be pitch only.
To put it in simpler terms: the engineers have invested a lot of time to make the aircraft behave naturally so, as others have said, don't overthink it and just make the appropriate inputs gently and see how the a/c reacts.