qqc2-desktop-style from home:Vogtinator:qt5.15:otherstuff 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:qt5.15:otherstuff/openSUSE_Tumbleweed/home:Vogtinator:qt5.15:otherstuff.repo zypper refresh zypper install qqc2-desktop-style