>>6316608>Shoulder check the door at Hawthorne, lightly.Can't just drop our sidearm and disengage for obvious reasons.
Staying in that doorway playing tug-of-war is a death sentence as Hawthorne said however.
One might check the door back into the perp forcefully so as to break their grip AND allow them to bounce back out the doorway immediately, though this isn't guaranteed to work.
While it's not ideal, pic related is a popular sentiment in the LEO community for a reason. Immediate violent action is the name of the game here.