I use Ubuntu on my work laptop. I need to be productive on my work computer, and I just don't have the time or inclination to futz around with drastically changed desktops and unlearn 15 years of muscle memory and comfort level. My computer needs to be familiar and simple to me so that I can spend time building and deploying apps, not trying to remember how to minimize a window or what hotkey is the 'switch workspace' key (since I don't use even them right now).