zlacker

You can try QubesOS, which does exactly this using virtual machines. Clipboard is not shared by default, you need to move the contents of the clipboard using yet another keystroke pair (so it's 4-salutes scheme: Ctrl-C, Ctrl-Shift-C, Ctrl-Shift-V, Ctrl-V to actually copy something between machines). App's windows are delineated with coloured borders which cannot be overridden from inside the VM.

There are major usability problems, mostly related to graphics (the protocol that forwards the windows is purposefully dumb and doesn't support 3D acceleration at all), but for things like browsing bank apps or even watching youtube it's enough.

>>throw_+(OP)
> the protocol that forwards the windows is purposefully dumb and doesn't support 3D acceleration at all

This is a major reason I haven't tried QubesOS yet. Thanks to Nvidia I've seen what happens when you run a desktop with a browser without hardware acceleration and it sucks. CPU cores get pegged with basic scrolling or video playback and power consumption is simply unreasonable.

Perhaps if I were a human rights activist or a journalist I would use it, but I'm not.