We know this what the real purpose of this is, it seems like they're going to sell it as a necessary tool for people who are too stupid to use a basic search function? Per The Verge:

"Microsoft’s launching Recall for Copilot Plus PCs, a new Windows 11 tool that keeps track of everything you see and do on your computer and, in return, gives you the ability to search and retrieve anything you’ve done on the device."

Oh, and apparently "Microsoft is promising users that the Recall index remains local and private on-device." Something something Brooklyn Bridge...