Version 94 of Chromium includes WebCodecs, but the chromium snap, after almost a year, is missing support for hardware accelerated video decoding & encoding:
So I was guessing which is the roadmap for it, and if we can expect support to solve this and other issues now that Firefox is also going snap-by-default.
Sort of… Google has been publishing several stable updates in short succession (94.0.4606.71 just now), and building the corresponding snaps in Launchpad is very time-consuming, so I haven’t caught up yet.
When I mentioned in my weekly update that I had updated stable, what I really meant was that the packaging branch had been updated and builds were running. This was confusing, apologies for that.
This is definitely on my to-do list, but I am dealing with higher priority tasks at the moment (among which is the firefox snap transition). I can only beg for your patience (or contributions) here.