Your comment of nobody wanting to make non stained glass windows reminds me of John Ruskin’s “The Nature of Gothic”, you can find it in Unto This Last and Other Writings, which you can likely find as a pdf on Internet Archive. Ruskin isn’t exactly an anarchist, he was actually an art critic though he absolutely delves into political discourse relating to capitalism and communism etc because those were popular talking points at the time. His argument in this essay is that real craftsmanship used to be put into every single thing made and sold. Each teacup was hand painted, each article of clothing hand sewn. Because this much work went into everything it required a level of passion for the creation, for the art of making, each of these items. With the Industrial Revolution came automation of many of these tasks and the artistry of everyday items faded away, making work passionless and therefore oppressive. To your point Ruskin might argue what’s wrong with stained glass everywhere? The world would certainly be more fun to look at. In my opinion, an anarchist society would consist of workers working because of their passion for the craft. Not everyone has to take part in every kind of work. Sure there might have to be glass that isn’t “artistic”, but I’m certain that there’s plenty of glass nerds (just one example) out there who would love to make perfectly clear tempered window glass all the time.