Bluesky has live video but it's a Twitch stream. ATProto itself is about databases and ways to replicate them. You can store pictures and videos there, but you wouldn't normally use a database replication protocol to actually transmit live video.
Right, I'm more concerned about the areas where there's overlap between atproto and matrix, like with identity and authentication, for example.
Unless you're Teams. Which... Is probably evidence for the above.