That ring should not be pressing it down super hard. Use your thumb to press down and rotate the rubber button. Maybe disconnect the power first. It should rotate.

If that doesn’t work, you’ll need to try using a single edge razor blade to very carefully get between the ring and the body. Just pressing it in should lift the ring slightly. You run the risk of scratching the body and cutting yourself, though.

That’s the only way I know. That style of ring is a press fit and not designed to be removed.