What an annoying problem. Just got the new iPhone 12 Pro, and I tried everything that everyone suggested with no success. The widget still appeared as someone else stated to show me I was using my AirPods. The below steps finally worked for me- I did also delete my music app for now (did that before the steps below). Yes, it is really that big of a nuisance for me... Hope this works for you too- if you are willing to delete the app. Happy Holidays!
Settings.
Siri and Search.
Under “Siri Suggestions”, uncheck everything(turn everything off- no green showing).
Then scroll down and find the Music icon.
Under “On Home Screen”, uncheck everything
Topic:
App & System Services
SubTopic:
Core OS
Tags: