Tangential question for you then, assume the spatial audio is encoded using object based techniques (such as Dolby Atmos). Per my understanding, I need to then apply a HRTF to convert the object based audio to binaural audio for playback through headphones. So which programs do you recommended for that conversion? In Windows, Mac or Linux. Thanks

How do you cast from Kodi to Chromcast, with a plugin? Also, do subtitles work correctly when casting?

Confirmed that this works! Setup: Tailscale on android phone, Chromecast Ultra without tailscale. Edit settings in Jellyfin app to play on external player. Choose VLC as external player and then cast from VLC to Chromecast Ultra. Caveat: casting a stream with subtitles does not work.