Comment by locknitpicker

> In what way?

For starters, you can start by checking https://caniuse.com .

Then, dive down into the concept of polyfills to understand what extra work everyone must go through to normalize the platform.

And then look at the features themselves. Web components is a good example. Theywere developed as a hack to extend toe current platform to catch up with basic features provided by JavaScript web frameworks. Except they are virtually unusable, unless they are made palatable with... JavaScript frameworks.

And lastly, compare that with the experience of just using a mainstream JavaScript framework. Any of them. It's world's of difference. JavaScript frameworks prioritize developer experience to the point they even went through great pains to have a xml-like DSL to make their javascript be seamless. Whereas things like web components go the opposite direction and make their platform's first class feature feel like vanilla javascript.