I always hope that manjaro signs the boot manager and kernel in the software source, and then publishes the public key as a software package in the software source. Finally, the user can import the public key in the BIOS, and the secure boot can be enabled.
However, some developers replied that because of the nvidia driver, you need to turn off secure boot, but I think even after signing the boot manager and kernel, you can still turn off secure boot in the BIOS, and users who do not use NVIDIA drivers can still choose to enable it. Safe booting can obviously improve system security and ease of use. It is obviously a troublesome and repetitive thing for users to sign the kernel and boot manager by themselves.
And if the kernel and boot manager are automatically signed when the software package is compiled and the private key is unchanged, it seems that you only need to import the public key into the BIOS once.