Just a regular keyboard from the 90s. Not thin. Not light. Number pad and all. No ‘fn’ key under your pinky, and ideally no windows key either. I guess the “brown” keys from the article sound like what I would expect one of those old keyboards to feel like.
I suppose it can have a caps lock indicator. But I can’t think of any reason I will ever need my entire keyboard to glow blue.
I don't want anything to do with flashy RGB keyboards either. I did get one that has a simple white dimmable LED backlight, much like laptops with backlit keyboards. I use it occasionally in the winter time when it's dark and I just want a slight visual indicator of where the keys are. But most of the time I use a couple with no lights at all.
Maybe an iKBC CD108. They are pretty easy to get a hold off. No real bells or whistles. It does have a windows key (I'm not sure I've ever seen a full size keyboard without a windows key to be honesty). Your choice of Cherry switches including browns.
