Chromium OS gets very close, they also have fully-functional VM-based isolation for Linux applications with GPU acceleration.
Unfortunately, there's no popular non-Google distro of it.
Unfortunately, there's no popular non-Google distro of it.
It also seems to have a lot of new code every year for very few new features. It's as if they get every new intern to rewrite a bit of the innards, and then next summer another intern rewrites it again.
First CoreOS, which forked into Flatcar Linux (now funded by Microsoft) and Fedora CoreOS (rewrite from Gentoo/ChromeOS base to Fedora base), and Google's Container-Optimized System (used heavily in Google Kubernetes Engine).