I was wrong, MS seems to have changed its revenue disclosing methodology but it's still not clear how much Azure generates as it's lumped with Windows server, SQL server and Enterprise mobility under the 'Intelligent Cloud' division.
It's still inflated because azure revenue is counted with other server products like Windows Server, SQL server and Enterprise mobility under the 'Intelligent Cloud' division.
I'm new here, so are you that snarky Twitter guy with an open jaw pic as a profile pic? I'm not sure if you still consider an at least 8 billion dollar annual revenue run rate business (GCP) as a 'hobby'.
Office 365 and Azure with other cloud based services is still counted under the 'Commercial Cloud' division. I'm sure that's what op is referring to and with G Suite and GCP under the Google Cloud division.
I think dart/flutter serves primarily two purposes, as I see it. First the obvious one, Google is trying to get devs used to flutter as when the time comes to switch to Fuchsia/Zircon, it would be relatively a breeze.
Secondly, and the most immediate reason, I think it's a very clever and clear move from Google to lock-in devs into using Google Cloud services like Firebase and Cloud ML services by leveraging Flutter. If you have observed, Microsoft has given a rebirth to their Xamarin developers YouTube channel and have been hosting 'The Xamarin Show', which is, hmm, quite similar to 'The Boring Flutter Development Show'.