Hmm seems we disagree so it is not factually wrong, but a matter of where you draw the line at fallback. I am not an expert in uefi but my uefi system does not

Hmm seems we disagree so it is not factually wrong, but a matter of where you draw the line at fallback. I am not an expert in uefi but my uefi system does not give me the ability to pass command line arguments to the kernel. I actually went to check and took a picture[1]. According to your statement that means you need a working system to repack your kernel if you do not use grub. That kind of proves the opposite of what you write. With grub you can set kernel arguments in an ephemeral way by just interrupting the boot. In the past, when testing failing kernels it was mighty useful to add a magic argument to the kernel. [1] https://ibb.co/6vS1VX9 https://ibb.co/6vS1VX9