I checked both solutions:
- /etc/profile.d/kde.sh is not existing instead there is the entry /etc/profile.d/manjaro-kde-settings-xdg.sh however the content is totally different :
export XDG_CONFIG_DIRS=${XDG_CONFIG_DIRS:-/etc/xdg}:/usr/share/manjaro-kde-settings/xdg
and echo shows:
xxx@xxx ~> echo $XDG_DATA_DIRS
/home/xxx/.local/share/flatpak/exports/share /var/lib/flatpak/exports/share /usr/local/share /usr/share
- Re/install libx11 does not solve the problem either