I just installed the KDE DE following the official instructions “Install Desktop Environments”.
The final step was:
Create a new user for the new desktop environment
sudo useradd -mG lp,network,power,sys,wheel <username>
sudo passwd <username>
which I thought that would mean that I could have a user using XFCE and a second user using KDE. However, in the end both users use the KDE DE, without me having removed XFCE.
So I have 2 questions:
Is it possible somehow to switch the DE of my first user back to XFCE?
If not, how can I completely remove XFCE so that it doesn’t use disc space?