I can mostly only speak for my own industry (software engineering), but subjectively, it seems like we lost a lot of institutional knowledge as well as organizational structures through Covid that will take a while to rebuild.

Between people going into early retirement (I heard aviation was hit particularly hard by this), people changing careers and their replacements not having much in-office spin up time etc., and some industries/markets never returning to in-person work at all when it used to be common before, I have some theories on where we lost both.