[evv]

Navigating isn't more complex in native apps, and I didn't mean to imply that. But navigation state may be deeper than flat sets of URIs: it may be a tree.

For example: your app may have a stack of modal screens, and each of those screens may have tabs or a stack, and there may be another tab or stack navigation within each of those. In React Navigation, each node can be a router that manages its own navigation state.