What hardware reset typically does, in my experience, is to reinstall the last firmware you installed. Many don't even have the space to keep some original and/or safe image in addition. I'm working on one device where we delete much of the existing system to make space for even downloading a new firmware image. It's wild.
iirc for computers doesn't gigabyte have some kind of patent on dual bios design (active vs backup bios chips). I'm sure there are other ways to implement it but I think thats true.
I bet, but I'm talking about devices where the manufacturer tries to shave off every cent to price their products competitively. And then you have big meetings where you have to push back on storage being reduced by a further 2 MiB. At least that's something I've seen working in the embedded space. Storing an additional firmware image, be it only a few megabytes, is unfortunately often off the table there.
