in bookworm sid... as already mentioned bookworm sid tries to overwrite severla kubuntu /kde config files. I dont know if this is problem of kde or bookworm sid upgrade... i report here... currently, kde/plasmashell is broken to me. dpkg: error processing archive /var/cache/apt/archives/desktop-base_12.0.5_all.deb (--unpack): trying to overwrite '/etc/skel/.face', which is also in package kubuntu-settings-desktop 1:21.04.5
sudo dpkg -i --force-overwrite /var/cache/apt/archives/desktop-base_12.0.5_all.deb (Ανάγνωση βάσης δεδομένων ... 883963 files and directories currently installed.) Preparing to unpack .../desktop-base_12.0.5_all.deb ... Unpacking desktop-base (12.0.5) over (12.0.3) ... dpkg: warning: overriding problem because --force enabled: dpkg: warning: trying to overwrite '/etc/skel/.face', which is also in package kubuntu-settings-desktop 1:21.04.5 dpkg: warning: overriding problem because --force enabled: dpkg: warning: trying to overwrite '/etc/skel/.face.icon', which is also in package kubuntu-settings-desktop 1:21.04.5
You are trying to install packages of two different distros this is most likely not supported by them and not a KDE bug in any case