How can I sync Apple Music between MacBook Pro and iPhone 13?

I have a 2024 iPhone 13 and a 2023 MacBook Pro. I recently uploaded a specific CD to my Apple Music library on the MacBook.

I tried to Sync across to Apple Music on my iPhone. The sync process takes 2-3 seconds (I used to see a progress bar as each album synced across).

I then check on the iPhone and the album is not visible ? Why

Apple ..please why is something that should be so straight forward, so difficult ?

[Re-Titled by Moderator]

Original Title: MacBook to iPhone 13 not syncing music