"How to cancel Apple TV+
1. Go to tv.apple.com.
2. Choose Sign In at the top of the page. If you don't see Sign In, skip this step.
3. Choose the account icon at the top of the page.
4. Choose Settings.
5. Scroll to Subscriptions and choose Manage.
6. Choose Cancel Subscription."
They haven't changed it, that's how I cancelled it over a year ago and that's how you cancel it today. That's all you had to do to cancel when you did it as well.