I invested heavily in the Amazon Music ecosystem, I bought hundreds of albums on there, and the platform is now very nearly unusuable. I cannot even listen to the songs that I paid for without also having to listen to ads. And the Android app now hides the downloads in some hidden folder so I can't even download them and listen to them on another player. It makes me furious.
I've actually gone back to CDs, if you can believe it. It's kind of nice sometimes, especially for full album plays, but I do miss a nice big playlist of my favorite songs from all artists.