Am I missing the point here?
I have been driving my remote Debian based machines (RasberryPi-headless, Xubuntu, etc) using TiightVNC server and VNC viewer (from Chrome app store) for a while now.
Using an old single-core Athlon based PC (c.10yrs old) the desktop runs beautifully on my HP Chrome book, LibreOffice/ Gimp etc - and the GUI often runs faster over VNC than it does on the host machine due to better graphics on the Chromebook, I guess.
Anyway, I'm pleased to see even more options and flexibility for the Linux desktop - and to paraphrase Mark Twain - "The reports of [the Linux desktop's] death are greatly exaggerated."