Diretta protocol is like Roon RAAT and NAA, but unlike RAAT and NAA, it's a
system wide meaning, Netflix, Dolby Atmos, Peace EQ APO (if you like EQing) or any streaming apps you use can utilize Diretta. Naturally, that includes Roon and HQPlayer, Tidal and Qobuz as well. Heck even PC gaming can work too

Not sure about latency hehe
Diretta protocol can be Bit-perfect (if using the aforementioned streaming apps) or not bit-perfect through Windows Mixer (Apple Music or Deezer or Spotify). From Windows Mixer, you use an interface that lets you access Diretta such as Virtual HiFi Cable. Pretty much what you'll need is to only use the Virtual HiFi Cable from Windows Mixer as your sound device with Apple Music and let the system sound be on something like RealTek sound or other devices so that the system sound won't interfere with your music playback.