I don't think most people care about vp9 or codec wars. It's not something on almost anyone's minds.

h.264 and h.265 are the dominant codecs, regardless.

And Netflix found that h.265 consumed less bandwidth than vp9, not more: https://www.streamingmedia.com/Articles/ReadArticle.aspx?Art...

People should care if they want to watch YouTube in more than 720p resolution...

tvOS has supported vp9 since last year, the youtube app however has been slow getting that message...

https://9to5mac.com/2020/09/18/4k-youtube-videos-still-not-c...

Somehow, google has made it so that the best way to watch YouTube on an Apple TV is to open YouTube.com in a browser on another apple device and airplay to the Apple TV.

Looks like it's been supported since October 2020:

https://www.theverge.com/2020/10/3/21500399/apple-tv-youtube...