I hear that. The latest update to kde / plasma5 changed something enough that it took me 4 logins before I got a task manager. Dealing with these these super disruptive / breaking kde changes only a few times a year are why I run the stable packages rather than the -current packages. I think I'm just going to give up and switch to lxde
Not to be too much of an old-fart, but I gave up on kde after they moved away from 3.5. I've tried every major release since 4 came out and I keep not liking it.
I do really enjoy some of the apps, but I'm fully in the i3 camp for several years now.