I think a pre-requisite here is that your computers are using UEFI (rather than BIOS) and then there’s a question over whether the setting for Secure Boot matters.
I would be cautious about that. How was that list arrived at? Did the researchers test every machine that they could get their hands on? or every machine on the planet? Maybe your “2012 laptop” is just too old for the researchers to get their hands on?
Or did the researchers base the list off firmware brand and version?
Anyway, you should be looking for the certificate (if any are listed at all) that says “DO NOT SHIP” or “DO NOT TRUST”.