> good enough to stream YT, in my experience, so presumably already good enough to attend meetings

YT needs bulk throughput while meetings need latency and quality. YT can seem smooth for much longer despite massive amounts of retransmission and packet loss, meetings fall apart rapidly with even a tiny bit of those

you really have to try it. On a flight to Hawaii in October, I was getting speeds of 300+ mbps and latency that felt like my home wifi. It's just seamless and feels like an entirely different product than any other connectivity I've had in the air.

The transpacific United flights I’ve been on have all blocked audio and video streaming.