The 90% vs 75% figures ignore the fact that the 75% AV1 support is made up of 72% full support + 3% partial support, while the 90% H.265 support is made up of 2

The 90% vs 75% figures ignore the fact that the 75% AV1 support is made up of 72% full support + 3% partial support, while the 90% H.265 support is made up of 21% full support + 69% partial support, so AV1 is doing surprisingly good! But yeah, that's fair. I overlooked how much older H.265 is than AV1.