Mid 2021 is when the vaccines became commonplace and late 2021 was when most of the hiding at home came to an end. Early 2022 was when the Omicron variants, which are more contagious and less hazardous really became the dominant strains out there. So it sure makes sense to me that 2022 would be the bulk of the infections.
The last time I though about COVID as something to alter my behavior over was probably in late 2021. In earlier 2021 I wasn’t concerned for myself, but my first wife was in real raggedly shape by then and could not have survived COVID, so I was still as careful as somebody whose job entails air travel 14 days a month can be. Once she died in late 2021, COVID was/is something completely in my rear view mirror.
As I type I’m sitting in a large airline club lounge at a hub airport. This room is one of about 6 in this club. I count about 90 people. Most of the chairs are occupied. I see exactly zero masks. COVID is over.