I installed KDE lite and had an issue with the keyboard layout, Norwegian in my case, not being applied:
- the layout as specified in Calamares seems not to have been carried over to the installation
- KDE System Settings, Keyboard Settings, changing to Norwegian did not yield the desired result
- Garuda Settings Manager, Keyboard Settings, same issue
- /etc/vconsole.conf KEYMAP=no, same issue
In the end a search in Garuda Forum gave me this
So, if you experience the issue described above,
fcitx-config-gtk3
will solve your problem 