Made a table of current media players on AVP

No app supports Dolby Vision correctly at the moment, closest you get is Cinemax Player fallback DV to HDR

For non HDR content, watching on Cinephille and pre-choose audio + sub track is probably current best solution, downside is no playback control. Hopefully HDR support and playback can be added soon

For HDR content, best is probably download to AVP locally and watch from Cinemax Player, not that the one in app store is not player HDR properly I think. You will lose immersive env but at least playback and HDR is there

For now I would rather stick to content in Apple TV app and Disney+, I watch some older films that HDR doesn’t really matter, for those I will use Cinephile from now on since then just added Plex support today.

Hope it helps!