Comment by reisse

It's all about hardware support really. AV1 is pretty new (2018), give it some time. E. g. Nvidia supports decoding since 3xxx generation, and encoding only since 4xxx generation.

I still vividly remember what a clusterfk was H264 support on mobile devices just ten years ago, circa 2010-2015. AVC spec was published in 2003, High Profiles standardised in 2005, universally supported only since ~2015. I personally had a 2011 Tegra 2 tablet which did support H264, but didn't support high profiles.