Who I have the same questioned this solution

    Jtaylor8683, you would be correct in that Apple Music is consuming your data. You say that you are streaming 1 hour each way to work for a total of 2 hours each day. At that rate Apple Music could use as much as 12 GB of data per month.

  With Apple Music you could download the music with Wi-Fi. Then play it without being connected to the internet, which would greatly reduce the data usage.