kf6-kitemviews from home:Vogtinator:frameworks6 project
Select Your Operating System
Add repository and install manually
For openSUSE Tumbleweed run the following as root:
zypper addrepo https://download.opensuse.org/repositories/home:Vogtinator:frameworks6/openSUSE_Tumbleweed/home:Vogtinator:frameworks6.repo zypper refresh zypper install kf6-kitemviews