Part of that is because of the codec it is using. h264 would be nice because almost everything has hardware encoding/decoding of it, but they decided to go with

Part of that is because of the codec it is using. h264 would be nice because almost everything has hardware encoding/decoding of it, but they decided to go with VP9 instead and it wouldn't surprise me if they planned AV1 to replace it already even though not many machines have hardware decoding for it yet.