User-Agent:       Mozilla/5.0 (X11; Linux x86_64; rv:78.0) Gecko/20100101
Firefox/78.0
Build Identifier: 

I see this as related to bug 1172292

It seems impossible to load a Leap 15.3 kernel with 32-bit UEFI firmware.

I tried several ways, but could not boot the installer.

I eventually installed to a KVM virtual machine using legacy booting.  I then
took the installed memory image, and converted that to using 32-bit UEFI with
ovmf-ia32-{code,vars}.bin firmware.  And that still would not boot.

I now have it successfully booting with kernel-default-5.3.18-lp152.63.1 which
is a kernel from Leap 15.2.  But it will not boot with the Leap 15.3 kernel.

I'll grant that this is not an officially supported setup.

Reproducible: Always