As my free trial of Apple Music is due to end very soon, and I do not intend to pay for continued service, is there anything I should be doing before the trial ends to avoid any problems?
You can turn off auto-renewal. If you are on iOS:
- Open the Music app
- Tap the profile icon in the top left to get to the account menu
- Choose View Apple ID
- Under Subscriptions > Manage, turn off auto-renewal.