Though in the original title AV1 could be anything if you don't know it's a codec. How about:
"AV1 open video codec now powers 30% of Netflix viewing, adds HDR10+ and film grain synthesis"
The article barely mentioned “open”, and certainly gave no insight as to what “open” actually means wrt AV1.
AV1 is fine as-is. Plenty of technical titles on HN would need to be googled if you didn't know it. Even in yours, HDR10+ "could be anything if you don't know it". Play this game if you want, but it's unwindable. The only people who care about AV1 already know what it is.