Whether you use a body part split, or you prefer full-body workouts, push-pull combos are a great technique to utilize when trying to become more efficient at building muscle mass.
Arnold was well known for his chest-and-back superset workouts that put massive amounts of muscle on his frame and if it worked for him it can definitely work for you.
One great thing about push-pull combos is they allow you to get a kill workout it a short period of time. That doesn’t mean that they are easy though, far from it.