I agree this is stuff which is common knowledge amongst those of us who know a bit about tech. I think the following quote [0] is probably the novel value of the project : "What is interesting about the dataset is that the best example for location tracking of movements are not vehicles, smartphones or even activity trackers – but headsets that do not have MAC randomization, which may make it easier to track the movements of an individual headset rather than the individual’s smartphone."

[0] https://www.hegnes.tech/2021/09/01/location-tracking-of-wifi...