I had an Apple Arcade trial, whose trial period matches the non-trial payment cycle, and the same thing happened.

There is one rule for Apple, and one rule for everyone else.

Tim Cook's Apple is more than happy to use the abusive customer-hostile patterns they deny others.

Hm, trial period (3 months) is longer than non-trial payment cycle (1 month) for Apple Music, and in my experience, you can still use it after cancellation, until the trial period expires.