xfce4-docklike-plugin from home:pragmalin 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:pragmalin/openSUSE_Tumbleweed/home:pragmalin.repo zypper refresh zypper install xfce4-docklike-plugin
For 15.4 run the following as root:
zypper addrepo https://download.opensuse.org/repositories/home:pragmalin/15.4/home:pragmalin.repo zypper refresh zypper install xfce4-docklike-plugin