grub2-x86_64-efi from home:michael-chang:gcc12:grub2 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:michael-chang:gcc12:grub2/openSUSE_Tumbleweed/home:michael-chang:gcc12:grub2.repo zypper refresh zypper install grub2-x86_64-efi