> I don't know, I think you're conflating content streaming with central compute.
Would you classify eg gmail as 'content streaming'?
Well, app code is streamed, content is streamed. The app code is run locally. Content is pulled periodically.
The mail server is the mail server even for Outlook.
Outlook gives you a way to look through email offline. Gmail apps and even Gmail in Chrome have an offline mode that let you look through email.
It's not easy to call it fully offline, nor a dumb terminal.
But gmail is also a relatively complicated app, much of which runs locally on the client device.