Comment # 15 on bug 1208003 from Steffen Winterfeldt

As a result of Dominique's swift reaction to bug 1208057 grub2-i386-efi is now
available also on x86_64.

With that both our 32 bit and 64 bit Tumbleweed installer media are now
bootable
on 32 bit UEFI.

What remains is adjusting the installer.

It's not that trivial as Andrei would have us believe in comment 13, though.
:-)

IIRC, you need to adjust a few places. In the storage-ng and bootloader yast
modules. OTOH, it's not too hard either as there are already a number of UEFI
architectures (x86_64, aarch64, and riscv).

The new thing would indeed be finding out the firmware bits independent of the
cpu architecture.

And well, no shim. But I think that's not a major concern.