Hey there, so if you go with React Native, you are going to need something to serve the data and run the backend, so there is no reason why you couldn't build the website with Laravel, and the backend API for the React Native application with Laravel as well.

But, if you are only wanting a website first, then you will need to go with a web framework and if you have Laravel experience then I would definitely recommend that.

If you are only wanting to build a mobile app, then you will use React Native coupled with a backend API and you could build that with Laravel.

Either way, stick with laravel for the backend if you already have experience with it. (: