Trying to a php string to a page

I am not sure if it’s doable in the front end but I am trying to add this to a page I created:

<a href="<?php echo wp_logout_url( home_url() ); ?>" title="Logout">Logout</a>

This string can be used to logout of WordPress and you immediately get forwarded to the homepage. I tried using the “Code Block” but that didn’t function because I get forwarded to a not found page.

I also tried to add it to a new page in my childtheme by copying the page.php page and inserting at the top:

<?php
/*
Template Name: logoutpage
*/
?>

so I can choose that template for the logout page but that kills the full width of the page.