I have seen on web apps like Clickup, where the route changes on selecting a new tab on the left side bar, but the whole window does not change, only the main content.

So is the route changing without a change of context? So this is happening with Intercepting routes?

But the NextJS doc only shows how to use Intercepting routes with parallel routes to show a modal. I am not confident I have completely understood what is exactly happening in Intercepting routes, and how they work, and if this paradigm can be used for components other than Modals.