In Remix, you can do much more with leaf routes than just rendering a component. In this example, I'm adding stylesheet to head when grid-view.tsx is rendered. Which changes styles of an element in the parent.

You can also use 'useMatches' hook and 'handles' to pass data around your app. In here root.tsx uses a component that is passed by grid-view.tsx or list-view.tsx to display to Icon on the right side of the breadcrumbs.