Uh!? What’s the issue with privacy? Qubes is great to make sure you don’t get a malware while you watch “youtube”, and this malware gets access to your bank account. I feel privacy is kind of out of scope here, not that you don’t need it, but you can plug it in with ease. There’s nothing in qubes design that prevents privacy.

Cloud is just a way to distribute computation, and make sure storage is always available to you. Everything should be assumed to be protected — I mean, they protect video memory among processes/apps, you’d bet they protect your data on the cloud.