Not sure how this addresses some of the real concerns behind Recall, an example being if my password manager is open and showing data I don't want saved anywhere else.
On macOS (I assume a similar feature is on Windows) I believe an app/window can specify that it has secrets or is "private". I think is this what rewind.ai uses to skip capture, or maybe it's that the screen capture API's in macOS already filter out those private windows.
Of course reading documentation or investigating is not necessary for writing clickbait.