The grab mechanic can be used by every player and it can be extremely useful. (and it was a networking pain ರ_ರ)
You can can grab other players and large objects and drag them, however, different characters have different strengths and different objects have different weights which influence the drag speed.
Also its easier to drag a player that is not resisting than when the player tries to get away.
A player can break loose of the grab by “spamming” the space key and there is a small cooldown for the player grabbing to prevent continuous grabbing.