After installing Plasma using sudo eopkg install -c desktop.kde && sudo eopkg it latte-dock, my system performs almost flawlessly except I cannot change my system time or NTP settings. (Plus a minor hassle with icons, also visible in picture below at the top-left.)
I get a couple of really generic errors.
Anecdotal that installing Plasma from Budgie ISO disables the systemd-timesyncd.service
After running sudo systemctl enable systemd-timesyncd.service && sudo systemctl start systemd-timesyncd.service, my system time is now correct but the KDE time settings still error and cannot change the system time.
timedate status was useful for seeing what timesyncd was doing.