Question

"in troubleshooting a boot problem, what is the advantage of restoring all uefi/bios settings to their default values?"

Answer 1

When this case would appear, one thing that I would do personally would first, go to the settings, in then, after having this done, I would then "scroll down" to where ti would say "restore (uefi/bios) files, and from there, you would get every value that would would have from the beginning in your chip.

And also, what is truly unique would be the fact that you would be able to choose the "restore point" that you would like for it to appear.