You claimed that the author had no right to call his desktop setup a desktop setup based on your own made up rules. That is the very definition of gatekeeping.

Also, please tell me where I insulted you. I called you out for gatekeeping and did so rather politely. If you consider a rebuttal to be an insult I’d advise you to grow a thicker skin before interacting with others or you’re in for a lot of disappointment.