[Wordpress] Different homepage for logged in users

functions.php

<?php

function switch_homepage() {
    if ( is_user_logged_in() ) {
        $page = 2516; // for logged in users
        update_option( 'page_on_front', $page );
        update_option( 'show_on_front', 'page' );
    } else {
        $page = 2; // for logged out users
        update_option( 'page_on_front', $page );
        update_option( 'show_on_front', 'page' );
    }
}
add_action( 'init', 'switch_homepage' );

?>

Hello there, I started a little research on how to change the homepage for users once they are either logged in or logged out just as this code does.

but it looks like 'switch_homepage' effects the database itself everytime. so it causes confusion when two users acces the site and one is logged in and one is logged out