For toolchain.15.5 run the following as root:
zypper addrepo https://download.opensuse.org/repositories/home:munix9:AppImage/toolchain.15.5/home:munix9:AppImage.repo
zypper refresh
zypper install linuxdeployqt
For toolchain.15.4 run the following as root:
zypper addrepo https://download.opensuse.org/repositories/home:munix9:AppImage/toolchain.15.4/home:munix9:AppImage.repo
zypper refresh
zypper install linuxdeployqt
For toolchain.15.3 run the following as root:
zypper addrepo https://download.opensuse.org/repositories/home:munix9:AppImage/toolchain.15.3/home:munix9:AppImage.repo
zypper refresh
zypper install linuxdeployqt