This is what KDE is about:
http://news.softpedia.com/news/kde-anno ... 7187.shtml
Love it or loath it, KDE are courting mobile.Work on the Kirigami user interface framework started back in March 2016, when the KDE development team announced their plans for creating one of the most powerful and sophisticated tools that would allow application developers to build cross-platform Qt-based apps for mobile platforms.
Personally, I can understand it. The vast majority of one time computer users are not interested in full blown computers. They just want the internet really. So Chromebooks and smartphones are where the sales are now.
The trouble is that any UI developer that has gone for convergence has generally thrown the desktop user under a bus.
Ubuntu/Unity = smart phone on the desktop. But at least it's usable and appeals to the average user who actually REALLY LIKES using a laptop like a mobile phone. Hell for a power user, though and certainly Unity is not really a desktop UI. It's more a smartphone UI on a desktop (and such was GNOME's thinking where Unity came form.)
GNOME 3 = originally abandoned the desktop user and caused immediate forks to Cinnamon and Mate! Gnome had to quietly, gently, creep back to the desktop.
Windows 8 = Threw desktop users under a steam roller and reversed back over them... several times pouring lime over the bodies. Failed to get the mobile market and had to creep back to desktop mode with Windows 10… and Microsoft are still alienating users.
Apple got it but went with a completely different OS for mobile devices.
So I give credit to KDE for seeking convergence without throwing users under the mobile bus. Plasma 5 is MUCH like Plasma 4 with only a few regressions. So credit where credit is due. But convergence always comes at a price for the desktop. No surprise some features have been lost.