[RunSet]

> If you have to choose one technology it's better to use one where you can do everything. Not one where you can do 95% really fast, but 5% not at all.

> I personally always use "complex" frameworks like Angular or React because sooner or later feature requests come in, where those frameworks pay off. On average it saves time for me to always use those frameworks.

I wonder whether they ever pay off. First, I don't believe the frameworks you mention really, as you suggest, enable the last 5% of functionality that would otherwise be impossible. No, those frameworks are written in the same language they work in, which means that strictly speaking they do not enable any new functionality.

Second, whatever ease / speed of development you use must be weighed against the additional cost borne by the project's users. The time you save (that you might otherwise spend learning to achieve the same result without the framework) could be less than the time spent collectively by users waiting for the framework to load.