I want to use your Order Attributes in scripts/customizations. How may I get their values from the code?

I want to use your Order Attributes in scripts/customizations. How may I get their values from the code?

To get the Order Attributes values from the code, you may use the strings below:
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$orderRepository = $objectManager->get('Magento\Sales\Api\OrderRepositoryInterface');
$order= $orderRepository->get();
$attr = $order->getData('');