virtualbox from home:cbus:modern-leap:virtualbox7 project
Select Your Operating System
Add repository and install manually
For 15.6 run the following as root:
zypper addrepo https://download.opensuse.org/repositories/home:cbus:modern-leap:virtualbox7/15.6/home:cbus:modern-leap:virtualbox7.repo zypper refresh zypper install virtualbox