Time to video start is a bandwidth thing. Latency is the time it takes a packet to do a round trip. Typical 4G latency in the US is about 50mS and 5G is not yet faster because it’s still heavily reliant on the 4G infrastructure. It is expected to drop to 1mS as the rollout continues. This will have a significant impact on interactive content.

I think you’re conflating a few things though.

1) 5G spec improvements which do exist and are measurable today 2) your perceived value of those improvements 3) the FCC mandates in the US, which is currently being challenged

You might not want the improvements. Others may. The real issue, IMHO, is the FCC mandates. Although the challenge has a risk for technology too. If the courts agree that there is a possible health risk to RF I have no idea what kind of pandora’s box that opens.