The 7 day average of the previous wave we had in America over the winter was roughly 100,000 cases per day higher and 1,000 deaths per day higher than it is now that 65% of the population has had at least one dose.
It'll be interesting to see what happens this winter... Hopefully won't see another monster wave like last winter.. but considering vaxx effectiveness drops over time and it's less effective against the delta variant, who knows... I guess we shall see what happens. I hear the best immunity is among people who survived covid AND were vaccinated..... Somewhat concerning how they figured that out though!