If you want to exclude specific pages or posts (like the Privacy Policy page) from the LoginPress Force Login feature. The following filter will help you achieve the task
function loginpress_exclude_forcelogin_callback() {
return array( 'privacy-policy', '1' ); //Here '1' is the ID of the post.
}
add_filter('loginpress_exclude_forcelogin', 'loginpress_exclude_forcelogin_callback' );
Here you can return a single value or array. You can return the slug of the post or the post-id.