In my book a "graphical shell and a widget toolkit" (and its associated ecosystem) is what makes a "desktop" different from e.g. a video game system. ChromeOS w

In my book a "graphical shell and a widget toolkit" (and its associated ecosystem) is what makes a "desktop" different from e.g. a video game system. ChromeOS wouldn't de facto be very different for users nor applications developers with a windows kernel and windowing system.