tvOS Picture-in-Picture for non video apps?

I'm working on a cross-platform app that displays time-dependent information via SwiftUI Views, updated automatically or by user interaction. For the tvOS version (which is now working as a full-screen app on tvOS13.4) I'd like the ability to show the app's data in PIP when the user navigates to a different app (such as a TV program) or, better still, as a rolling banner at the bottom of the screen.

However, my understanding of the tvOS 14 beta implementation of Picture-in-Picture is that an app invoking PIP must play video content, not the non-media content of updating SwiftUI Views. Is this correct? Is there any way of keeping an app active, but minimised, when the user invokes another, unrelated, app?
tvOS Picture-in-Picture for non video apps?
 
 
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