I actually thing is the other way around... App Development is solved (unless you want to run the same codebase on multiple OS) but Web Development is a mess n

I actually thing is the other way around... App Development is solved (unless you want to run the same codebase on multiple OS) but Web Development is a mess now that JS devs are trying hard to put themselves in every layer of the app from the networking layer to the data layer, throwing out the window years of good practices.