Change WooCommerce "My Account" item menu title when the user is logged in

custom_nav_menu_item_title.php

<?php
/* If you want to limit it to a specific theme location */
add_filter( 'nav_menu_item_title', 'custom_nav_menu_item_title', 10, 3 );
function custom_nav_menu_item_title( $title, $item, $args ) {
	//Menu item should be set with the text you want to use for "logged out" users
	//Logged in?
	if ( is_user_logged_in() ) {
		//Correct menu location
		$theme_locations = array( 'acc-menu', 'mobile-secondary-menu' ); //Update to your own locations here
		if ( isset( $args->theme_location ) && in_array( $args->theme_location, $theme_locations ) ) {
			//Is it a page?
			if ( isset( $item->object ) && $item->object == 'page' ) {
				//Is it the correct page?
				$id_page = get_option( 'woocommerce_myaccount_page_id' ); //Or the page ID if it's not a WooCommerce install
				if ( isset( $item->object_id ) && intval( $item->object_id ) == intval( $id_page ) ) {
					//Get the current user
					$user = wp_get_current_user();
					$title = 'Hello '.$user->display_name; //Or any other "logged in" text
				}
			}
		}
	}
	return $title;
}


/* Simpler version - Not checking the theme location */
add_filter( 'nav_menu_item_title', 'custom_nav_menu_item_title', 10, 3 );
function custom_nav_menu_item_title( $title, $item, $args ) {
	//Menu item should be set with the text you want to use for "logged out" users
	//Logged in?
	if ( is_user_logged_in() ) {
		//What page?
		$id_page = get_option( 'woocommerce_myaccount_page_id' ); //Or the page ID if it's not a WooCommerce install
		//Is it the correct page?
		if ( isset( $item->object_id ) && intval( $item->object_id ) == intval( $id_page ) ) {
			//Get the current user
			$user = wp_get_current_user();
			$title = 'Hello '.$user->display_name; //Or any other "logged in" text
		}
	}
	return $title;
}