diligent-react-native/navigation/RootNavigation.js

import React, {useContext} from 'react'
import { AuthContext } from '../context/AuthContext'
import AppStack from './AppStack';
import AuthStack from './AuthStack';

const RootNavigation = () => {
    const {userInfo} = useContext(AuthContext);
    
    return (
        !userInfo.jwt ? <AuthStack /> : <AppStack />
    )

}

export default RootNavigation