Replace example.com with your own domain name and movies with your custom post type name. Save your menu and then visit the front-end of your website. You will see the new menu you added, and when you click on it, it will display your custom post type archive page using the archive.php template file in your theme.
Using Custom Templates for CPT Archives and Single Entries
If you don’t like the appearance of the archive page for your custom post type, then you can use dedicated template for custom post type archive. To do that all you need to do is create a new file in your theme directory and name it
archive-movies.php. Replace movies with the name of your custom post type.
For geting started, you can copy the contents of your theme’s
archive-movies.php template and then start modifying it to meet your needs. Now whenever the archive page for your custom post type is accessed, this template will be used to display it.