Chrome OS
Used by 6 peopleen.wikipedia.org ↗

“I love the Pixelbook's hardware and find Chrome OS reasonably reliable and pleasant to work with (and it has nice security properties), but I'm getting a bit tired of not having root on my own hardware.”
Nelson Elhage Interview, Software developer (Stripe) · via Uses This 
“Dell Chromebook running stock Chrome OS.”
Jessie Frazelle Interview, Software engineer (Google, Docker) · via Uses This 
“Chrome OS, especially on a powerful machine like the Pixel, is great for web browsing and web applications, but is not so hot for anything else.”
Darius Kazemi Interview, Internet artist (Tiny Subversions) · via Uses This