Interesting. So the "rules" are:
Push, Drag, or Lift. You can push, drag, or lift a weight in pounds up to twice your carrying Capacity (or 30 times your Strength score). While pushing or dragging weight in excess of your carrying Capacity, your speed drops to 5 feet.
Which would make Hafthor Bjornsson str 36 as he holds the record for Dead lift at 1100 lbs.... but potato potato...