in the apple music app for windows there is an icon you click
looks like this
https://www.macworld.com/wp-content/uploads/2023/12/ios-airplay-icon.jpg?quality=50&strip=all&w=1024
that will let you add audio output to airplay 2 enabled devices on the network
in terms of airplay 2 for visuals then a third party non apple comercial module is required such as airparrot
AirParrot 3 | Mirror & stream content from your Mac or PC to Apple TV, Chromecast & more
these forums are user helping other users like yourself, it's sort of going
to a physical apple store and asking other customers their advice
and non of us speak officially for apple in any way