When I was setting up or installing CachyOS I decided to download COSMIC alongside KDE Plasma (which I set up as my DE). Though when I rebooted, COSMIC was the Default DE, though the DE I move forward with can be changed in the login menu.
My questions are:
- How can I change the default DE?
- How can I delete DEs?
- How can I add them if I want to use them in the future?
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At first make sure cosmic is really installed. Select it at the Login Screen and login. Then take a look at the config file for your desktop manager. Is it sddm, try:
sudo nano /etc/sddm.conf.d/autologin.confThen change Session to cosmic
[Autologin] User=john Session=cosmic
DE will be deleted with pacman, try this for kde:
sudo pacman -Rns plasma kde-applications
To install a DE use pacman, try this for xfce:
sudo pacman -S xfce4 xfce4-goodiesI hope this will help.
Thanks a lot!

