Long ago I set up my terminal program to keep a log of everything that came across the screen. It's been a game changer and I wouldn't want to live without it again. Any command line I ever ran, SQL query, results of those queries, I can search and refer back to. And it helps with smaller questions like what directory was I in when I ran this command, roughly what time was it, how many times did I run it, or am I misremembering whether I ran it yesterday or not?
I don't know if I'll use this Recall feature since I have my own solution set up already, but ignoring the typical Microsoft outrage, the general capability to have access to your history of work actions is powerful.