New Quad Lock case makes the Finger Ring accessory difficult to remove in the beginning. This “key” makes removal/installation easier until the detents wear down. It's not perfect, but at the very least torques the ring in the direction of the hinge.

I printed @ 20% infill (my default, though you could get away with less), no supports necessary.

N.b. The small “lip” at the bottom prevents the ring from swinging up as you twist. Have not tested with the Quad Lock Phone Ring by @Gnierat_260846, but I'm sure you could scale as needed to match the internal diameter of their model.