Sunnyvale, California, has a combined police and fire department. They train their people for both and they move back and forth. Emergency medical services is in there, too. At one time, their cops wore red blazers with the city insignia.
I think George Floyd is a good case study for reform; Chauvin and all officers should be required to assess for medical emergencies at all times basically and take at least some level of medical action when necessary. So Chauvin should have been required to check for consciousness and then provide aid once finding Floyd to be in medical distress.
Organized crime (especially drug crime) is a quasi-military force. The police are threatening billions of dollars in illicit profit, and that will not go unchallenged easily.
The danger level goes down when it's known that a cop's power is in their reinforcements. The individual cop would be little danger and doesn't need to be shot.
Arguably that should be addressed by a different organisation than the folks who enforce traffic laws and investigate petty theft. The state guard, perhaps?