Some good news on the other hand is the fact that Infuse Pro can do local playback of "Good Game Episode 5" which is a YouTube Red series that I have stored locally in 4K and it's encoded using Google's VP9 codec. So just like ProTube on iOS it seems like Infuse Pro on tvOS have no issues with adding software decoding of the VP9 codec and it plays without any hiccups. As Infuse have no transcoding capabilities whatsoever it has to have some kind of VP9 decoder within the app, otherwise playback wouldn't be possible. Just like I'm still able to playback 4K content on YouTube on my iPad Pro using ProTube.
Can Infuse Pro software-decode VP9 Profile 2 content such as YouTube HDR videos?