Should I use angular, react or insert-framework-of-the-month for my next project?

prospective web developer in 2019

What framework should I use for web development in insert-exciting-new-language?

unsuspecting developer encountering an exciting new language

Web has become the default UI layer in recent years. Most projects grow around either a web or native mobile app. I myself usually start prototyping a new product by cobbling together a web app and hooking it up to a backend service.

However, what if that web (or mobile) app was not the right choice? Can we get away without building it at all? Here are a few interesting results I've come across while exploring this premise.