plasma5-session from home:Sauerland:plasma project
Select Your Operating System
Add repository and install manually
For 15.5 run the following as root:
zypper addrepo https://download.opensuse.org/repositories/home:Sauerland:plasma/15.5/home:Sauerland:plasma.repo zypper refresh zypper install plasma5-session
For 15.4 run the following as root:
zypper addrepo https://download.opensuse.org/repositories/home:Sauerland:plasma/15.4/home:Sauerland:plasma.repo zypper refresh zypper install plasma5-session