Ok so i know about Suspense and the special loading.tsx file but it seems it only works on initial load of a route. When navigating to any child routes, the loading page will not appear.

I know its supposed to be instantaneous but when you are fetching in those routes like this and navigating, it will just be a second or two of just...nothing:

const res = await fetch(..);

Is there something wrong that i am doing or is there a way to add a visual indicator on navigation so that until the data is fetch we dont just see nothing happening.