gnome-initial-setup from isv:SUSE:suse-it-infra project
Select Your Operating System
Add repository and install manually
For 15.4 run the following as root:
zypper addrepo https://download.opensuse.org/repositories/isv:SUSE:suse-it-infra/15.4/isv:SUSE:suse-it-infra.repo zypper refresh zypper install gnome-initial-setup