Where did you get that number? I initially just looked up WHO's estimate which turns out quite the lowball compared to what everyone else is listing, but most sources I can find seem to say something around 5-9M. I suppose it most depends on just how much China is fudging their numbers since they had the most people exposed at the worst time.

right here: 15 mln between 2020 and 2022 (https://www.who.int/data/stories/global-excess-deaths-associ...). For better, more up to date data check analysises by Ariel Karlinsky and The Economist.