The number of deaths and hospitalisations relative to the number of infections has been massively reduced - broadly, infection numbers are at a level now similar to, say, December 2020 but at that points deaths were 500+ per day, not 100 or so per day we are seeing now.
There is also a lot more people being tested and, because of that, difficult to tell whether there are more or less infections. But if we're comparing summer and winter (which we shouldnt based on last years events), 4% of the tests were positive on September 1 with 207 deaths, with 12% being positive on December 31 when there were 613 deaths. Massively reduced.. well.
I'd love a normal winter but I'll wait another few months before I put my "Covid vaccine saved the world" poster on the wall.