Microsoft WIndows 11 is rolling out Recall now. It takes screen shots everytime an app screen changes, for example it would take a screen shot of me typing this even if I didn't send it. This can be a major violation of HIPPA and legal rules on data etc. This makes it clear that you have to opt-in
Retrace your steps with Recall | Microsoft SupportRetrace your steps with Recallsupport.microsoft.com