Not surprisingly, it also works on my Pixel 2 XL.
@mustang7757 start playing a track, then hit the home button or back out to the home screen. Swipe down on the notification shade (do it too quick and it won't display the card for Amazon Music), try to swipe it away. You should get the gear for settings for that notification. Now pause the music and try swiping away again. It should swipe away, not show the gear for notification settings.
Well, it took me so long to type that you figured it out before I finished!!