iOS and iPadOS 14.5 beta 4: AirPlay 2 for Apple Fitness+, third-party controller support
With the release of iOS 14.5 and iPadOS 14.5 beta 4, it brings with it some features you might find helpful.
These include the addition of AirPlay 2 support for Apple Fitness+. It will let subscribers to Apple's fitness service begin a workout on an iPhone or iPad and then AirPlay this to a compatible smart TV or set-top box. AirPlay 2 supports audio and video, but it won't show on-screen workout metrics.