The chart is probably a lot more telling about socialization habits than covid. Chicago is masked up and covid is exploding, but nobody knows their neighbors so it's cool.
Meanwhile deaths are nowhere close, not in the same stratosphere as the spring. So either a) the virus has weakened b) the treatments have improved c) vitamin d helps a lot d) the weakest are already dead e) way, way more people had it in the spring than they knew about f) all of the above
Regardless, deaths don't lie. It ain't what it used to be, a fact we should celebrate not deny.