You've probably never heard of Coreboot, and honestly, you can go back to ignoring it. Here are a few reasons why it's not made for most people.

You might want to replace the UEFI firmware and get complete control over your PC’s hardware with Coreboot, a free software BIOS alternative—but you can’t in PCs with modern Intel processors ...

To install the RCS UEFI rootkit, an attacker must reboot the system into the UEFI shell, extract the firmware, write the rootkit to the dumped image and then flash it back to the system, the Trend ...

A team of Linux developers have gotten Coreboot functioning on a Z690 motherboard for the first time. It's only running Linux, of course, but it's a start.