kcminit
List modules that are run at startup
$ kcminit --list
/usr/lib64/qt6/plugins/plasma/kcms/systemsettings_qwidgets/kcm_kgamma.so
/usr/lib64/qt6/plugins/plasma/kcms/systemsettings/kcm_fonts.so
/usr/lib64/qt6/plugins/plasma/kcms/systemsettings/kcm_mouse.so
/usr/lib64/qt6/plugins/plasma/kcms/systemsettings/kcm_touchpad.so
/usr/lib64/qt6/plugins/plasma/kcms/systemsettings/kcm_style.so