> This seems to repeat the trajectory of VP9, where it exists and is supported solely thanks to YouTube, while the whole world is utilising H.265 for everything

> This seems to repeat the trajectory of VP9, where it exists and is supported solely thanks to YouTube, while the whole world is utilising H.265 for everything else, including recording video VP9 came too close on the heels of VP8. Thanks to WebRTC in particular, VP8 encoding support is everywhere. AV1 has a lot more backing, thanks in no small part to the H.265 licensing mess.