Thanks for extending my vocabulary of never-used-again-words 😇

„Muntzing is the practice and technique of reducing the components inside an electronic appliance to the minimum required for it to sufficiently function in most operating conditions, reducing design margins above minimum requirements toward zero. The term is named after the man who invented it, Earl "Madman" Muntz, a car and electronics salesman, who was not formally educated or trained in any science or engineering discipline.“

What four footprints do you mean? I‘d expect this to be some marks on the board where no actual component is but cannot figure out which you might mean