One of the actions labeled in the developer sessions that isn’t currently present is “Set Auto-Launch Audio Apps,” which sounds like a Scripting action that’d allow iPhone and iPad users to specify the new Auto-Launch functionality that appears when you ask Siri to play something and she responds by asking your preferred app for this type of audio.
Right now, that Siri UI is the only way iOS and iPadOS users can set any type of “default” audio for their various types of audio – music, podcasts, and background sounds, for example.
If “set Audio-Launch Audio Apps” comes to Shortcuts, that’d finally give Apple users a way to set their preferences for a default music player like Spotify or their favorite third-party podcasts app like Overcast.
It’s not clear if this will be coming to Shortcuts as part of this summer’s updates, or perhaps this could be reversed for something like iOS 15.1 and a native setting for the same defaults in the Settings app.
Either way, this kind of personalization and setting-of-defaults is something that’s long been request for Apple devices and would be welcomed inside the automation community as well – I want a Shortcuts action for every option in the Settings app or System Preferences option on the Mac.