So my Bluetooth headphones can probably be tracked. So what? You need to get to a distance of about 25-50 metres (practical experience says the 100 metres quoted in the article is "optimistic").
Meanwhile my phone is happily reporting back location to the mothership. If you turn off GPS, which I do because it uses battery, then it'll try to locate using WiFi, cell masts, etc etc. This location (actual or approximate) is also shared with advertising platforms in Christ knows how many apps that are happily chugging along in the background, unless you have a phone with an actively hostile battery management system that will put the apps to sleep properly, like the OS should have done in the first place.
If you don't want the risk of being tracked that way, don't use modern tech. There's always a Walkman and wired headphones if you need to listen to music when out (as somebody probably "on the spectrum", I find it a lot easier to go shopping with music, it helps to block everything else out).
This, of course, isn't considering security cameras, facial or numberplate recognition, the use of electronic payment methods, and the various other ways people can be tracked. If you don't want to be tracked that way, don't go out. Or if you do, go out somewhere so technologically backward that they just about have reliable electricity.
Me, personally, I don't actually care that much. I'm utterly uninteresting, just another worthless data point in millions. I live in the same place, work in the same place, shop in one of three places (mostly one), and as a committed introvert, I don't socialise. That's...pretty much my life. Really uneventful and boring, just how I like it.