1, Devices
Apple TV HD tvOS 18.5 (22L572) Mode(A1625)
HomePod Gen1 OS18.5 (22L572)
2, Test cases:
2.1 UIViewController + AVPlayerLayer + AVPlayer
Result: Can not AirPlay to HomePod
Sample code for UIViewController + AVPlayer
2.1 AVPlayerViewController + AVPlayer
Result: Can AirPlay to HomePod
Sample code for AVPlayerViewController + AVPlayer
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