mangohud from home:geekositalia:gamingtools 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:geekositalia:gamingtools/openSUSE_Tumbleweed/home:geekositalia:gamingtools.repo zypper refresh zypper install mangohud