It is used a lot more for people who don't have to worry too much about licensing at scale, such as pirate content or local streaming (quite often backed by an OS wide license). Doing a quick search on various pirate content search engine, I can see a lot of AV1 content now, so it'll eventually get more popular!
And for video streaming, AV1 is becoming increasingly used on Youtube and Netflix for example ( https://aomedia.org/av1-adoption-showcase/netflix-story/ )/.
It is used a lot more for people who don't have to worry too much about licensing at scale, such as pirate content or local streaming (quite often backed by an OS wide license). Doing a quick search on various pirate content search engine, I can see a lot of AV1 content now, so it'll eventually get more popular!