I’ve made the effort to secure mine and am aware of how the trusted protection module works with keys, Fedora’s Anaconda system, the shim, etc. I’ve seen where some here have mentioned they do not care or enable secure boot. Out of open minded curiosity for questioning my biases, I would like to know if there is anything I’ve overlooked or never heard of. Are you hashing and reflashing with a CH341/Rπ/etc, or is there some other strategy like super serious network isolation?
Keep EFI bootloader off the computer (n+1 copies on a flash drive). Make
/bootpartition fully encrypted.Don’t trust Secure Boot.
If you can, try the coreboot.
That’s the second best thing as long as you don’t worry about nation state actors (you’re removeded by then anyway). Only requirement is a board/laptop manufacturer with a proper uefi setup (eg ability to set your own keys, not using those “do not use” test keys, etc) - that usually comes with business machines.