That’s very much not what she does. Her entire method is based on teaching people to let go of things they know they don’t need but are holding on to for reasons that basically amount to either self-delusion or inability to let go of the past. All the stuff about how to fold your clothes is just organizing tips that are tangential to the central thrust of her advice. She spends the vast majority of her time coaching people into various ways of disentangling their stuff from the emotional or sentimental feelings they have attached to that stuff. That’s what alleviates the stress, not being bogged down by the collected cruft of older versions of yourself.
Almost all criticisms I’ve read of her method seem to be levied by people who never bothered to read her book and are working off some generic assumptions about what “minimalism” means.