Does Gift Card feature refer to ecards or plastic cards?

As per title. The documentation refers to Square gift card support – WooCommerce > Settings > Payments > Square > Gift Card Settings

Does this refer to ecards, the physical plastic gift cards we sell on store or both.

Obviously, as has been a feature request since 2016, I and everybody else wants to be able to sell a physical plastic card in their physical stores which custmers can use to buy online products through Woo.

Does this feature enable this or not (i.e. is it limited to ecards)?