I am sure this is helpful for many users. Personally, I have not used the QR codes for years since I find it just as easy to select the material in the materials menu and carry on.
Just an FYI to anyone who doesn’t already know this: the QR codes are unique to each sheet, so in theory the settings could be different. I don’t think this has happened, but I could imagine if the formula changes or GF is buying the wood from multiple manufacturers that have slight differences in performance, they would be able to customize it and your saved QR codes may not give the right settings.