The technology to convert wifi signals into the placement and identity of people is getting much better. Not by using their devices, just the waves bouncing of their bodies. (There’s nothing new to the pipeline as far as I can tell, we’re just starting to get into the accuracy ranges that make it easy/useful.)
I’m with you, we ought be sober in our judgement of new technology (unlike what we’ve seen with AI).
Yet also, I know there are some really interesting ways to surveillance a home if you have the resources. For example, you can reconstruct audio in a room using a recording of vibrations on a pane of glass. You can alternatively use a laser for longer distance from the glass, to get distorted and return the minor vibration data.