You could install a free WordPress plugin to enable “LOGIN / LOGOUT” menu links – or you could use a super simple snippet. Once again, the less plugins you use the better, especially if you can substitute them with a few lines of code.
In this case study, I have added the “My Account” page to the navigation menu and renamed it to “ACCOUNT” in the menu settings. However, I want that label to change to “LOGIN” if the user is logged out. Enjoy!

PHP Snippet: Conditionally Rename “My Account” Menu Label If User Is Logged Out
/** * @snippet Rename "My Account" Link @ WooCommerce/WP Nav Menu * @how-to Get CustomizeWoo.com FREE * @author Rodolfo Melogli * @compatible WooCommerce 3.7 * @donate $9 https://businessbloomer.com/bloomer-armada/ */ add_filter( 'wp_nav_menu_items', 'dynamic_label_change', 10, 2 ); function dynamic_label_change( $items, $args ) { if ( ! is_user_logged_in() ) { $items = str_replace( "My Account", "Login", $items ); } return $items; }