I came to this way of thinking by sheer accident. I was traditionally a desktop business app developer, and by the time I saw the writing on the wall, SPA frameworks were the dominant meta in front end. As I started getting contracts, I worked on one project with such a tight deadline that I simply had no time to bring a critical library into the cinematic React universe. So I just... wrote JS. I modified the DOM. And you know what? It was fine. Not only was it fine, it was easier. I wrote a little stream object in ~50 LoC to react to user inputs, and it worked flawlessly. I felt lied to. I thought making a web page interactive was an insanely difficult task only SPA framework authors were qualified to do? Yet here I was just... scripting the page.

The only cases to use framework is for project maintainability as I've found so far.