Device UUID will still leak an usage pattern. For example, if an UUID is active in the morning and in the evening during the week but at random times during the weekend you can infer that they are working, their approximate working hours and the fact they are not working on weekends.
Just a simple example - I’m sure a data scientist can do a lot more magic given enough data.
Just a simple example - I’m sure a data scientist can do a lot more magic given enough data.