DigitalArtifex [1] filed a deletion request for plasma6-wallpapers- komplex-bin [2]:
Since the Qt versions must match the system version for framework plugins, the bins will no longer be distributed and this package should be removed. Sorry [1] https://aur.archlinux.org/account/DigitalArtifex/ [2] https://aur.archlinux.org/pkgbase/plasma6-wallpapers-komplex-bin/
