I'm not sure if both you and previous parent don't know, but the main useful thing with Recall is understanding whatever is on the screen, not just file accesse

I'm not sure if both you and previous parent don't know, but the main useful thing with Recall is understanding whatever is on the screen, not just file accesses, or URLs visited but basically anything. So while Google's activity might see some parts, recent files sees another and so on, deriving that from screenshots captures everything you'd see on the screen.