Nice article, even though there's a slight smell of ChatGPT assistance in its structure.

Question: Why use observables instead of signals? Most examples you mention can be covered by signals and avoid pipe async or any other subscription pains.

BTW https://github.com/you-dont-need/You-Dont-Need-Lodash-Underscore

Lodash by itself is not tree-shaking friendly, so unless you don't mind the bundle size I wouldn't recommend using it.