iPhone users will soon be able to change their default music app with Siri

Engadget 

After years of being forced to use Apple services on the iPhone by default, those restrictions are finally easing up a bit. As noticed by MacRumors earlier today, the iOS 14.5 beta appears to let you set third-party music services as default with Siri. This means you can ask Siri to play a particular song or album and it'll go straight to Spotify or YouTube Music. Currently, Siri only searches and plays things from whatever music you have in the Apple Music app, be it your own collection of songs or the Apple Music subscription catalog. It sounds like after iOS 14.5 is installed, Siri will ask you what music service you want to use when you ask it to play a song.