[runeks]

> With React or whatever library you do the exactly same thing.

There are many React SPAs where the address bar URL rarely changes, and I have to find some "share" button on the page itself to get the page's URL.

[gloosx]

This is a generalization from personal exposure, availability bias. It just points out that some people implement things poorly — ignoring that many well-designed SPAs do use URL state effectively. React itself does not prevent or discourage URL-based state, it's just the developer's choice whether to use routing or no.