And at the same time, we are likely going to use codec-specific extensions for all AOM video codecs (.av1, .av2) as well as for images (.webp2, not sure if .avi

And at the same time, we are likely going to use codec-specific extensions for all AOM video codecs (.av1, .av2) as well as for images (.webp2, not sure if .avif2 will ever exist but I guess so), even when the same container is used, as we did with .webm (which was a subset of .mkv)