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

Provides :
application()
application(org.freedesktop.impl.portal.desktop.kde.desktop)
xdg-desktop-portal-kde
xdg-desktop-portal-kde(x86-64)

Requires :

libKF6ConfigCore.so.6()(64bit)
libKF6ConfigGui.so.6()(64bit)
libKF6CoreAddons.so.6()(64bit)
libKF6Crash.so.6()(64bit)
libKF6GlobalAccel.so.6()(64bit)
libKF6I18n.so.6()(64bit)
libKF6IconThemes.so.6()(64bit)
libKF6ItemViews.so.6()(64bit)
libKF6KIOCore.so.6()(64bit)
libKF6KIOFileWidgets.so.6()(64bit)
libKF6KIOGui.so.6()(64bit)
libKF6KIOWidgets.so.6()(64bit)
libKF6Notifications.so.6()(64bit)
libKF6Service.so.6()(64bit)
libKF6StatusNotifierItem.so.6()(64bit)
libKF6WindowSystem.so.6()(64bit)
libKWaylandClient.so.6()(64bit)
libQt6Core.so.6()(64bit)
libQt6Core.so.6(Qt_6)(64bit)
libQt6Core.so.6(Qt_6.8)(64bit)
libQt6DBus.so.6()(64bit)
libQt6DBus.so.6(Qt_6)(64bit)
libQt6Gui.so.6()(64bit)
libQt6Gui.so.6(Qt_6)(64bit)
libQt6Gui.so.6(Qt_6.8_PRIVATE_API)(64bit)
libQt6PrintSupport.so.6()(64bit)
libQt6PrintSupport.so.6(Qt_6)(64bit)
libQt6PrintSupport.so.6(Qt_6.8_PRIVATE_API)(64bit)
libQt6Qml.so.6()(64bit)
libQt6Qml.so.6(Qt_6)(64bit)
libQt6Quick.so.6()(64bit)
libQt6Quick.so.6(Qt_6)(64bit)
libQt6WaylandClient.so.6()(64bit)
libQt6WaylandClient.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_2.34)(64bit)
libc.so.6(GLIBC_2.4)(64bit)
libc.so.6(GLIBC_2.9)(64bit)
libc.so.6(GLIBC_ABI_DT_RELR)(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)
libstdc++.so.6(GLIBCXX_3.4.18)(64bit)
libstdc++.so.6(GLIBCXX_3.4.29)(64bit)
libstdc++.so.6(GLIBCXX_3.4.30)(64bit)
libwayland-client.so.0()(64bit)
libxkbcommon.so.0()(64bit)
libxkbcommon.so.0(V_0.5.0)(64bit)
rpmlib(CompressedFileNames) <= 3.0.4-1
rpmlib(FileDigests) <= 4.6.0-1
rpmlib(PayloadFilesHavePrefix) <= 4.0-1
rpmlib(PayloadIsZstd) <= 5.4.18-1
rtld(GNU_HASH)
xdg-desktop-portal
xdg-desktop-portal-gtk

Content of RPM :
/usr/lib/.build-id
/usr/lib/.build-id/65
/usr/lib/.build-id/65/ccbd0f0ad2c517d9b11e9e2849532a04d4f2f5
/usr/lib/systemd/user/plasma-xdg-desktop-portal-kde.service
/usr/libexec/xdg-desktop-portal-kde
/usr/share/applications/org.freedesktop.impl.portal.desktop.kde.desktop
/usr/share/dbus-1/services/org.freedesktop.impl.portal.desktop.kde.service
/usr/share/knotifications6/xdg-desktop-portal-kde.notifyrc
/usr/share/licenses/xdg-desktop-portal-kde
/usr/share/licenses/xdg-desktop-portal-kde/BSD-2-Clause.txt
/usr/share/licenses/xdg-desktop-portal-kde/CC0-1.0.txt
/usr/share/licenses/xdg-desktop-portal-kde/GPL-2.0-or-later.txt
/usr/share/licenses/xdg-desktop-portal-kde/LGPL-2.0-or-later.txt
/usr/share/licenses/xdg-desktop-portal-kde/LGPL-2.1-only.txt
/usr/share/licenses/xdg-desktop-portal-kde/LGPL-3.0-only.txt
/usr/share/licenses/xdg-desktop-portal-kde/LicenseRef-KDE-Accepted-LGPL.txt
/usr/share/locale/ar/LC_MESSAGES/xdg-desktop-portal-kde.mo
/usr/share/locale/ast/LC_MESSAGES/xdg-desktop-portal-kde.mo
/usr/share/locale/az/LC_MESSAGES/xdg-desktop-portal-kde.mo
/usr/share/locale/bg/LC_MESSAGES/xdg-desktop-portal-kde.mo
/usr/share/locale/ca/LC_MESSAGES/xdg-desktop-portal-kde.mo
/usr/share/locale/ca@valencia/LC_MESSAGES/xdg-desktop-portal-kde.mo
/usr/share/locale/cs/LC_MESSAGES/xdg-desktop-portal-kde.mo
/usr/share/locale/da/LC_MESSAGES/xdg-desktop-portal-kde.mo
/usr/share/locale/de/LC_MESSAGES/xdg-desktop-portal-kde.mo
/usr/share/locale/el/LC_MESSAGES/xdg-desktop-portal-kde.mo
/usr/share/locale/en_GB/LC_MESSAGES/xdg-desktop-portal-kde.mo
/usr/share/locale/eo/LC_MESSAGES/xdg-desktop-portal-kde.mo
/usr/share/locale/es/LC_MESSAGES/xdg-desktop-portal-kde.mo
/usr/share/locale/et/LC_MESSAGES/xdg-desktop-portal-kde.mo
There is 38 files more in these RPM.