[drvdevd]

Qubes uses Xen for isolation as I understand it -- essentially putting different programs in their own specialized, locked down domU. So it's probably much more robust against attack than this approach.

[edit] but I'm not arguing its a better solution for you. Depends on your needs and hardware, etc..

[youdontknowtho]

This is really interesting. If you look at what Microsoft is doing with Windows 10 with virtualization based security you can see that the Qubes approach is going to go mainstream within the next year. in addition to moving secrets that are normally stored in the kernel into a separate statically linked trusted OS running in it's own VM (that's currently available in credential guard) they will be running edge in a separate VM as well.

Qubes is ahead of its time and far more versatile than most other solutions at this time.