If desired, use a pressure cooker to make smothered pork chops. After searing the chops in the pressure cooker on the sauté setting, transfer them to a clean plate. Then, sauté the onions and mushrooms for 2-3 minutes. Sprinkle the flour over the vegetables, stir briefly, then whisk in the chicken broth and return the pork chops to the pot. Close the pressure cooker, cook on high pressure for 8 minutes, then perform a quick release. Stir in the heavy cream after releasing pressure, allowing the natural residual heat to thicken the gravy for about 5 minutes before serving.