I am seeking assistance with a broken Manjaro KDE desktop environment where the Plasma shell fails to load properly after login, leaving me with no taskbar, wallpaper, icons, or access to the application menu via the Super (Windows) key.
The sequence of events began during a system update that threw an “Authentication key failed” error. Suspecting the issue was caused by low storage, I ran a disk space cleaner to remove files (and I worry I may have inadvertently deleted something important), but the system became unresponsive, forcing me to restart.
Currently, I can access Konsole and launch applications from the terminal, and I have even successfully completed the full update via the command line since the reboot, but the GUI elements remain missing. I can provide specific logs if necessary and would appreciate any guidance on how to reset or restore the Plasma shell without a full reinstall.