This, the Arab world had amazing sanitation systems and has for millennia. Honestly across most of the global south wherever it was needed (highly urbanized society) sanitation as well as the attitude around hygiene was infinitely better than the west’s was (apart from the dilapidated legacy of Rome) and this is particularly so in Islamic societies, sure, the “mud-caked peasant” stereotypes of the dark ages are a wild over-exaggeration but fact is all the west Europeans and their squatter descendants have is projection (meanwhile funnily enough despite having “wealth” and “peace” look at any western city and ask who exactly is it whose societies cause the downtrodden to dwell in filth, which societies exactly are filthy rather than having had filth imposed on them by foreign invaders and exploiters)