Music Manager is the only mod for 1.20.1 Forge that supports setting delays between ambient soundtracks. Some people may want the delay function but not want the toasts, or maybe having toasts but only for the music discs. So how about adding a button that disables the ambient music toasts?

i second this
i was wondering why the config having disable toasts they still appear, only to realize its only for discs and not background music

Originally this mod was only supposed to add the music toasts, but I added the other features as time went on because I thought they fit. Because of this, I'm very hesitant to allow disabling the background track toasts, but I'll give it some more thought.