Background audio doesn't work with Youtube. If you minimise Orion on iOS, or switch to a different app, the currently playing Youtube video will pause.
The feature entails having the audio continue, so someone can use Youtube to listen to backgroud music / podcasts etc.
The closest that you can do now is to jump straight to lock-screen, which lets you play audio with the phone locked, but then you still don't have a way to access any other app.
I see the user being able to use Orion to access various video/audio websites such as Youtube and play their video/audio in the background without having to resort to using the floating window function, which some users might not be aware of, and requires more inputs in order to activate and manage.
Brave Browser appears to implement this perfectly: if you minimise or switch out of the app, the audio continues to play almost seemlessly, with a near-imperceptibly brief pause in the audio before it resumes exactly where it left off. It makes it very intuitive to quickly switch out of the browser and use other apps without having to think about manually opening the current video in the PIP mode in order to preserve the audio.
