Indeed. The Economist had a great article about this in their Dec 2011 edition. The article is behind a paywall, but the gist of it is that two effects explain the uptick in people changing jobs: (1) surges of job demand in new sectors boosted or entirely created by the pandemic (2) people who postponed job changes in 2020 (which hopefully will be considered as the worse year of the pandemic), effectively creating a backlog of job changes that got processed in 2021-2022. The economy just changed much faster in a few years.

Link to the article for the subscribers: https://www.economist.com/finance-and-economics/evidence-for...