WordPress redirect the home page to another page

It is relatively easy to redirect the WordPress homepage to another page. The redirection is possible to a static file as well as to an internal or external URL.

For this, the following code must be added in the functions.php of the corresponding template:

add_action('template_redirect', 'default_page');
function default_page(){
    if(is_home() or is_front_page()){
       exit( wp_redirect("https://www.lautenbacher.io"));
    }
}

Of course, the URL in the above example must be adjusted accordingly. After that, the redirect should be active immediately.