Comment by direwolf20
6 hours ago
Secure boot is initialized by the first person who physically touches the computer and wants to initialize it. Guess who that is? Hint: it's not the final owner.
It's only secure from evil maker attacks if it can be wiped and reinitialised at any time.
You seem to be under the impression that you cannot reset your Secure Boot to setup mode. You can in the UEFI, doing so wipes any enrolled keys. This, of course assumes you trust the UEFI (and hardware) vendors. But if you don't, you have much bigger problems anyway.
Is it possible someone will eventually build a system that doesn't allow this? Yes. Is this influenced in any way by features of Linux software? No.