Apple AirPlay supports 24-bit lossless audio but you can't use it

If AirPlay is limited to 16-bit CD-quality streams, how is the HomePod able to use AirPlay at a better-than-CD 24-bits?

Will lossless audio work via Airplay 2 an… - Apple Community

Lossless AirPlay streaming - Apple Music - Apple Community

iOS 14.6 allows users to AirPlay songs on Apple Music in Lossless from iPhone to HomePod - 9to5Mac

How to listen to Apple Music in up to 24-bit/192 kHz - the best DAC, headphones and speakers for hi-res lossless audio - RouteNote Blog

Article: Apple Music's Lossless and Hi-Res Mess - Page 12 - Article Comments - Audiophile Style

New Apple TV 4K and hi-res lossless - Apple Community

Apple AirPlay supports 24-bit lossless audio but you can't use it

New Apple TV 4K and hi-res lossless - Apple Community

Apple Music Lossless Audio – what we do and don't know - 9to5Mac