How to sync Apple Music?

Question

iPhone

Hello everyone people.
Faced with such a problem, I bought myself a macbook. On the iPhone there was music by subscription, the music was just downloaded to the iPhone in order to listen offline. I synchronized the whole thing with a macbook. But the music is not loaded on the macbook, that is, you can only listen via the Internet. But for some reason, on a poppy, it shows in the storage that the aduio takes one and a half gigs. Explain to the newbie what the topic is. Either let the music be fully loaded on the poppy, or somehow free up this space,