Google Assistant, Cameras, Cloud vs. Manual

The cloud documentation does not mention cameras for google assistant.

The manual configuration does.

Is that correct, that cloud does not support them but the manual config does, e.g. for a “Google show me the XXX camera”?

And yes, I see how with automation (etc.) and the new 0.9x play_stream you can accomplish it. Is that the same thing that the manual version would do (if it works) or a replacement for it?

There are so many paths to similar results I am trying to understand if there is a preferred or more reliable one.

Thanks,

Linwood