Kinda, but there were definitely far-cheaper options for materials in the early 20th century than ornamental sorts of stone like marble, they could definitely make much cheaper doors than big-ass heavy metal ones that'd still last at least as long as cheap modern doors, and they could make stick-built structures instead of e.g. heavy stone or brick buildings back then, and they often did—far nicer in some ways than ours, but that part of our slide in quality has the excuse that there simply isn't any lumber as good as what they used, anymore, unless you tear it out of an old building—but instead they chose to spend quite a bit more to make serious institutional buildings feel serious. Even for something as mundane as a post office or library in a little nowheresville coal town.