I have no mobile devices nor a workplace (actually, I'm looking for a job). But the work I do for college is mostly done in my home PC.
When I need something portable I borrow my parents notebook, which is configured to my tastes anyway. I chose Arch Linux with Xfce for performance reasons. Somehow I broke Xfce last january then installed LXDE.
My home desktop is a dual-boot Ubuntu 16.04 and FreeBSD. I'm currently running 11.0-RELEASE-p9. At Ubuntu I've installed Gnome Shell and Classic, as well as KDE Plasma 5. What I use, ironically, is Unity.
Gnome Classic reminds me of old Compiz-tweaked days with Desktop Cube and Skydome. However, my priorities right now are working skills and agile operating.
Once upon a time I had KDE Plasma 4 with three Activities, 9 workspaces each in 3x3 grids - then KDE5. Global shortcuts for Activity switching no longer works and adding Shift to Meta+Tab so to traverse backwards is not as good as it once was to bind
e.g. Meta+{1..3} or Alt+{1..3}. Despite my criticism I still got Plasma 5 and even use it every now and then.
Gnome Shell is just there. I don't like it. I'm not even sure why I installed it. It pretty much forces one to Mutter and its oddities such as vertically-only linked workspaces.
On Unity, I have my basic 3x3 workspace grid, tweaked so I can wrap around its corners. From anywhere to anywhere with a single Ctrl+Alt+Arrow.
On FreeBSD I have multiple DEs installed as well. Here I can still use Plasma with
x11/kde4 the way I described above to be my favorite.
KDE Plasma takes its time to load though. There are times I just want to do a couple of things then leave quickly. On these occasions,
x11-wm/i3 is quite appealing but I have yet to get used to it. Also, I find it weird to be having a nice working flow with Alt+Keys, then Chrome. Or whatever application with little-to-no support for keyboard, mouse-less navigation. Switching from Alt+Keys to mouse kind of "breaks-the-flow". I can do it. I'd rather not.
In-between i3 and Plasma, there is
x11/mate. Not too many features like Plasma has, but a lightweight alternative for i3. Very nice environment IMHO.
In the end it mostly boils down to describing tastes, so I described mine. It's not "wrong" nor "right" as a taste, not "better" nor "worse". Sorry for voicing such an obvious statement out loud, but it happened before in other places, for example, of people "accusing me" of "insulting their mouse preferences". Hope no one feels offended, it was not my intention at all.