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.)
Generally people should be more worried about the Ring camera across the street than someone using AI to analyze signal shaping data from the Wi-Fi to figure out what room you are in.