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by abrookewood 3204 days ago
Not sure what the status is now, but many years ago I explored Xen CLient, which runs Xen as the base OS, but lets you run VMs with full hardware support (direct graphics card access etc) as your 'desktop' OS and switch between them.

It was originally marketed as a mechanism for running a Corporate OS and a Personal OS simultaneously, with both of them running at within about 5% of native performance.