I don't remember downloading a different desktop management environment (DM), so I'm using only Unity.
Why do I have updates for Dolphin (A KDE file manager) and Konqueror (A KDE web browser) ?
I'm mean why do I have them installed in the first place ?
The answers suggest that I may have downloaded tools with KDE dependencies. If that's true, why would this include main applications such as text-editors and web browsers in the updates ?
This is the output of some of the suggested commands to investigate:
$ dpkg --get-selections | grep kde kde-baseapps-bin install kde-baseapps-data install kde-l10n-engb install kde-runtime install kde-runtime-data install kdelibs-bin install kdelibs5-data install kdelibs5-plugins install libkde3support4 install libkdeclarative5 install libkdecore5 install libkdesu5 install libkdeui5 install libkdewebkit5 install $ apt-cache rdepends kde <kde>