Having lived in Germany for over 5 years I would say I for sure don’t miss right on red. It always confused me that it was a thing most places but then some intersections had a sign you better have seen to know it’s not okay to do it at that particular intersection.

Right on red seemed to be introduced to help save gas during a crisis. Again, living in Europe most modern cars have idle shut offs. So when you come to a complete stop at say an intersection while idling at a red light your engine automatically shuts off until you take your foot off the break, thus saving fuel.

Safer for everyone involved, less confusing, more consistent and it still meets the requirement of the original intention of right on red.