When you request a physical version of a virtual card you have, you can continue to use the original virtual card details for online payments. However once you receive and activate the physical card, the CVV (the last three digits on the back of the card) and the expiry date will update to match what you have on the physical card.
This means that if you have saved your virtual card details as a payment method with any online merchants, it's a good idea to check those details and update them when you activate a physical card.
Please note that you can only have one physical card per person.