https://techcrunch.com/2019/10/07/spotify-gains-siri-support-on-ios-13-arrives-on-apple-tv/

In a long-awaited move, Spotify announced this morning its iOS 13 app would now offer Siri support and its streaming music service would also become available on Apple TV. That means you can now request your favorite music or podcasts using Siri voice commands, by preferencing the command with “Hey Siri, play…,” followed by the audio you want, and concluding the command with “on Spotify.”

The Siri support had been spotted earlier while in beta testing, but the company hadn’t confirmed when it would be publicly available.