There has really never been a better time to ditch build steps. CSS is awesome now. It has variables. It has nesting (maybe not everywhere yet but still).
Code organization? Modern browsers support ES modules, so it's not like you need one gigantic bundle.
As @jimniels said, if you are writing JavaScript in VSCode, you are using TypeScript. You get a lot of editor support without actually needing to build anything.
https://blog.jim-nielsen.com/2023/the-flavors-of-typescript/