It needs to be said, this is what you get by "trusting" Microsoft.
There really is no need for secure boot in Linux. The only reason to have it is if you dual boot because M/S says so. If using Linux by itself, just disable secure boot and have done with it.
I don’t know why we ended up trusting microslop. Red Hat implemented it for the sake of convenience causing all these issue.
I disagree that there is no need for secure boot for Linux?
Secure boot prevents tampering of your kernel and/or bootloader, nothing about Linux prevents this from being possible.
You might argue that you don't care about this, but some people such as myself do!