I believe this is true in general in the software industry but more obvious among web developers.

Every 1 - 2 years, there is a new web frameworks that solves the same problem in slightly different ways.

People spend lots of energy learning these new web frameworks but don’t spend the same amount of time to just learn JavaScript and the browser itself.

If you think about it, the Web API is already a framework. React/Vue/Svelte are just super frameworks on top of a poorly designed legacy framework called HTML/CSS.

The choice of React/Vue/Svelte does not matter. Some use virtual Dom and some don’t. It does not matter. If the developer does not know how to write JavaScript, it will end up be the same shit.