Isn’t this GPS data to see where Covid has spread? Even if your name is anonymous, a GPS point that every day goes to your work and then your home is surely you?

Most probably, yes. But how would you know who I am and where I live? And if you do know both of those things, are there other ways of figuring out my routines? Yes, there are.

Keeping the name out of that data does a lot for privacy. With a name in there, you could use the data to find my name and figure out my address. Without the name in there, you don't know which point I even am without knowing some of my locations from another source.