@Ste74 I actually liked the
manjaro-gnome-maia-theme but on the dual monitor set-up the image was set on the middle of two screens, as a result half of the image was appearing on one screen and the other half on the other screen, although the login prompt were correctly localized on the primary screen.
Thus, if you intend to keep those packages for the future release you may look onto those details.
P.S. I found out that libreoffice-fresh that is installed by default comes with kde integration package, which I guess should not be included, may you also check that as well?