You can get the payment method title from the Order in Magento 2 by the order repository interface.
Load an Order by API OrderRepositoryInterface with Order ID, Get Payment Object, and fetch Payment-related stuff from the Payment Data.
You can get the payment method title of an order by below code snippets below,
<?php
namespace Rbj\Order\Model;
use Magento\Sales\Api\OrderRepositoryInterface;
class Data
{
public function __construct(
private readonly OrderRepositoryInterface $orderRepository
) {
}
public function getPaymentData()
{
$orderId = 1;
$order = $this->orderRepository->get($orderId);
$payment = $order->getPayment();
$method = $payment->getMethodInstance();
echo $method->getTitle(); // Cash On Delivery
echo $method->getCode(); // cashondelivery
}
}
Using the above method you can get any payment method title or code.