Especially if it's BLE. Commercial sites are full of tags that advertise their MACs. Phone app reads this and use it to deduce where you are. You can try something similar yourself with WiFi using Google geolocation API.
Spotify did get worse. It used to have build-in Genius lyrics / trivia display for currently playing song. This feature and recommendation system actually convicted me to pay for it over using youtube as main music player. It is no longer available.