I have worked with such people. When I asked them specifics about the "result" (HTML, CSS, JS) they looked at me as if I was talking another language. They came from javascript framework world, and there they didn't really think all that much about that.

My philosophy is nearly completely different, I ask myself what the minimum maintainable code is that would produce the equivalent of a well hand coded HTML+CSS+JS website. Usually the result is magnitudes smaller.

One of those people asked me how I did realtime list filtering on 1000 table rows and still have it load fast ans perform well on mobile. While that isn't really a feat, all I sid was deliver the whole data on the first request and then hide non-filtered data dynamically. That means the webserver didn't have to do anything wild, orher than deliver the same cached data to everybody who filters that list and because this was the only javascript going on on that site it was (to them) unusually performant. If you look at a comparable table row from their solution (some framework, didn't have much insight into it) the resulting html was 80% boilerplate that they didn't even use.

Web development is too entrenched and many wandered too far from the essentials of web technology.