ChromeOS doesn&#x27;t use X11 any more. It uses a custom graphics stack called Ozone[1] that runs on top of libDRM on Linux and uses features such as hardware overlays which are common now that X11 knows nothing about.<p>[1] <a href="https:&#x2F;&#x2F;www.chromium.org&#x2F;developers&#x2F;design-documents&#x2F;ozone" rel="nofollow">https:&#x2F;&#x2F;www.chromium.org&#x2F;developers&#x2F;design-documents&#x2F;ozone</a>