... except that broken or ignored browser standards, and Javascript's lack of dealing with Timezone, for example, are not the result of complexity, per se, but

... except that broken or ignored browser standards, and Javascript's lack of dealing with Timezone, for example, are not the result of complexity, per se, but of social inability: a committee or industrial consortium being unable to come to an agreement... kicking the can down the road in some cases, building-in complexity for ulterior motives in some cases by some parties, etc... the web is a mess on the front end for political, rather than computer science, reasons (say, you don't want to include the 2mb outdated moment.js? well, even though every browser included this code to fetch and update it's IANA timezone database in it's source, and has compiled against it, you can't access it via a public API from JS though LOL... you can figure out a way to run this code to get your data muahahahahahah.... https://www.iana.org/time-zones https://www.iana.org/time-zones)