I've yet to see that proven though; alongside web technology based GUIs is also the concept of evergreen applications, that is, stuff that gets updated and kept

I've yet to see that proven though; alongside web technology based GUIs is also the concept of evergreen applications, that is, stuff that gets updated and kept up to date all the time, and force pushed to end users. And while on paper a web application built 20 years ago still works today as it was, the same can't be said about the technology used to develop and build these; there's a ridiculous amount of churn in the libraries and frameworks, to the point where you have to set up your github actions or whatever to frequently keep your stuff up to date, because if you run more than six months behind, any updates will break your carefully balanced setup. Of course, that's a choice. Ultimately there's no real need to use Typescript, a framework, or a collection of libraries, and if you do choose them, there's the huge complex but fragile ones like Angular and React and their ecosystems, or smaller ones leveraging modern web tech developments or solving only a single problem. (I'm aware React was intended that way originally but in practice it's a whole ecosystem you're pulling into your application)