they have incredibly strong core strength while powerlifters have very weak core strength vs. how strong they are
that is the difference and no a gymnast cannot hang with a powerlifter when it comes to lifting heavy ass weight, but they would be stronger than your normal joe of course
Gymnasts have great muscular endurance but not great raw strength. They'll wouldn't be able to lift a huge amount of weight but they could lift a decently heavy amount of weight for multiple reps