… so I could make quick upload the whole website to my hosting. Is it possible? Sorry for a basic question but I didn’t find the answer anywhere. If it’s not possible the whole idea about Local is useless for me 
If you host with Flywheel or WP Engine, you can use Connect to deploy the site.
Other hosting providers don’t have that seamless connection, so you’ll need to deploy changes manually or with a plugin.
If that’s not an option, then hopefully Local isn’t completely useless for you and it’s still an option for testing things within a development environment on your own machine!