I am concerned about the threat of persistent malware entrenched in device firmware. I am not familiar with the intricacies of firmware security, so I am turning to SE for help.
I recently learned of FSF-certified laptops that have all proprietary firmware removed, and come with open-source firmware, bios, and operating system. For example, the Taurinus X200.
My question is whether such a laptop provides greater protection against firmware malware, such as BadBIOS? Are there mitigations that open-firmware laptops have that proprietary-firmware laptops do not, such as an ability to inspect the firmware for changes, or perhaps the ability to re-load the firmware on a regular basis? Are there other aspects of open firmware that one needs to bear in mind? Thanks in advance for any insight!