Hmm ... It's impossible ;-) This RPM doesn't exist on any FTP server

Provides :
application()
application(kcm_sddm.desktop)
kcm_sddm
sddm-kcm6
sddm-kcm6(x86-64)

Requires :

libKF6Archive.so.6()(64bit)
libKF6AuthCore.so.6()(64bit)
libKF6ConfigCore.so.6()(64bit)
libKF6ConfigGui.so.6()(64bit)
libKF6CoreAddons.so.6()(64bit)
libKF6I18n.so.6()(64bit)
libKF6KCMUtilsCore.so.6()(64bit)
libKF6KCMUtilsQuick.so.6()(64bit)
libKF6KIOGui.so.6()(64bit)
libKF6Service.so.6()(64bit)
libKF6WidgetsAddons.so.6()(64bit)
libQt6Core.so.6()(64bit)
libQt6Core.so.6(Qt_6)(64bit)
libQt6Core.so.6(Qt_6.7)(64bit)
libQt6DBus.so.6()(64bit)
libQt6DBus.so.6(Qt_6)(64bit)
libQt6Gui.so.6()(64bit)
libQt6Gui.so.6(Qt_6)(64bit)
libQt6Qml.so.6()(64bit)
libQt6Qml.so.6(Qt_6)(64bit)
libQt6Widgets.so.6()(64bit)
libQt6Widgets.so.6(Qt_6)(64bit)
libc.so.6()(64bit)
libc.so.6(GLIBC_2.14)(64bit)
libc.so.6(GLIBC_2.2.5)(64bit)
libc.so.6(GLIBC_2.3.4)(64bit)
libc.so.6(GLIBC_2.32)(64bit)
libc.so.6(GLIBC_2.34)(64bit)
libc.so.6(GLIBC_2.4)(64bit)
libstdc++.so.6()(64bit)
libstdc++.so.6(CXXABI_1.3)(64bit)
libstdc++.so.6(CXXABI_1.3.9)(64bit)
libstdc++.so.6(GLIBCXX_3.4)(64bit)
rpmlib(CompressedFileNames) <= 3.0.4-1
rpmlib(FileDigests) <= 4.6.0-1
rpmlib(PayloadFilesHavePrefix) <= 4.0-1
rpmlib(PayloadIsZstd) <= 5.4.18-1
rpmlib(RichDependencies) <= 4.12.0-1

Content of RPM :
/usr/bin/sddmthemeinstaller
/usr/lib64/qt6/plugins/plasma/kcms/systemsettings/kcm_sddm.so
/usr/libexec/kf6/kauth/kcmsddm_authhelper
/usr/share/applications/kcm_sddm.desktop
/usr/share/dbus-1/system-services/org.kde.kcontrol.kcmsddm.service
/usr/share/dbus-1/system.d/org.kde.kcontrol.kcmsddm.conf
/usr/share/doc/packages/sddm-kcm6
/usr/share/doc/packages/sddm-kcm6/README.md
/usr/share/knsrcfiles/sddmtheme.knsrc
/usr/share/licenses/sddm-kcm6
/usr/share/licenses/sddm-kcm6/CC0-1.0.txt
/usr/share/licenses/sddm-kcm6/GPL-2.0-or-later.txt
/usr/share/licenses/sddm-kcm6/GPL-3.0-only.txt
/usr/share/licenses/sddm-kcm6/LicenseRef-KDE-Accepted-GPL.txt
/usr/share/polkit-1/actions/org.kde.kcontrol.kcmsddm.policy