I’ve turned off Secure Boot a little while ago because enrolling keys is annoying at best, so it shouldn’t matter much, but the AMD improvements that are bundled in here make it important.
I suppose I’ll see if I can get Fedora to boot through Secure Boot after all this.
It’s not enforced, but I kept it on and was using Fedora until I turned it off recently since they support it. If I turn it back on, good chance Secure Boot will complain when booting into Linux.
I think this is the issue here
Debian supports secure boot OOTB.