Remove default wordpress theme

I have added a React page as a subdirectory of my WordPress site, but I really don’t want it to have any of the existing properties of the WordPress site, such as the theme, nav-bar, footer, etc.
Is it possible to remove all of the extra content that isn’t part of the react build? So that the result is just what I made in the react app.
Sorry if this is dumb or easy to fix, Im fairly new to both WordPress and react!