Can’t get shipping street & city

I’ve created a custom module to get order data to be used into tracking code in success page.
I got all data phone, total country .. etc except the street and city !
I don’t know what’s the problem, below my model code :

<?php declare(strict_types=1);

namespace NectarGoogleBlock;

use MagentoCheckoutModelSession;
use MagentoFrameworkViewElementTemplate;

class Success extends Template
{
    /** @var Session */
    private $checkoutSession;

    /**
     * @param TemplateContext $context
     * @param Session $checkoutSession
     * @param array $data
     */
    public function __construct(
        TemplateContext $context,
        Session $checkoutSession,
        array $data = []
    ) {
        $this->checkoutSession = $checkoutSession;
        parent::__construct($context, $data);
    }

    public function getGrandTotal()
    {
        $order = $this->checkoutSession->getLastRealOrder();
        return $order->getGrandTotal();
    }
    
    public function getEmail()
    {
        $order = $this->checkoutSession->getLastRealOrder();
        return $order->getCustomerEmail();
    }
    
    public function getFirst()
    {
        $order = $this->checkoutSession->getLastRealOrder();
        return $order->getCustomerFirstname();
    }
    
    public function getLast()
    {
        $order = $this->checkoutSession->getLastRealOrder();
        return $order->getCustomerLastname();
    }
    
    public function getMobile()
    {
        $order = $this->checkoutSession->getLastRealOrder();
        $telephone = $order->getShippingAddress();
        return $telephone->getTelephone();
    }
    
    public function getStreet()
    {
        $order = $this->checkoutSession->getLastRealOrder();
        $street = $order->getShippingAddress();
        return $street->getStreet();
    }
    
    public function getCity()
    {
        $order = $this->checkoutSession->getLastRealOrder();
        $city = $order->getShippingAddress();
        return $city->getCity();
    }
    
    public function getCountry()
    {
        $order = $this->checkoutSession->getLastRealOrder();
        $country = $order->getShippingAddress();
        return $country->getCountryId();
    }

}

Could you please advise.