I've had interviews with programming challenges and they recorded every single keystroke. Not sure how legal that is.
Obviously it gets into the weeds, but where does it stop? Clearly there's some boundaries. If i have an app actively open/selected, what does it have access to?
I could see an argument where if the user didn't think they were sending it, then the user has not acknowledged to transferring "ownership" of data. As nebulous as ownership is in this context, i'm simplifying.
I'm not making any statement here. Just posing a hypothetical to attempt to illustrate where privacy arguments could be made.