For openSUSE Factory PowerPC run the following as root:
zypper addrepo https://download.opensuse.org/repositories/devel:tools:building/openSUSE_Factory_PowerPC/devel:tools:building.repo
zypper refresh
zypper install bazel3.4
For openSUSE Factory run the following as root:
zypper addrepo https://download.opensuse.org/repositories/devel:tools:building/openSUSE_Factory/devel:tools:building.repo
zypper refresh
zypper install bazel3.4
For 15.5 run the following as root:
zypper addrepo https://download.opensuse.org/repositories/devel:tools:building/15.5/devel:tools:building.repo
zypper refresh
zypper install bazel3.4