gnome-shell-extension-appindicator from home:heipa 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:heipa/openSUSE_Tumbleweed/home:heipa.repo zypper refresh zypper install gnome-shell-extension-appindicator
For 15.5 run the following as root:
zypper addrepo https://download.opensuse.org/repositories/home:heipa/15.5/home:heipa.repo zypper refresh zypper install gnome-shell-extension-appindicator