Hello,

You can upload your fonts as a custom via Theme Settings -> Typography -> Custom Forns, also you should add for the font’s name some prefix (e.g -local).

https://gyazo.com/7a3962bea54c1ef08944aaf70a9b2b5c

So as a result your fonts will be loaded from your server.

The Font Awesome is not connected via the theme, in your case, the Elementor connects it.

Kind Regards