But isn't that how all gift cards work? If I buy someone a gift card to Target, Target has that money at the time I buy the gift card not when whoever I give th

But isn't that how all gift cards work? If I buy someone a gift card to Target, Target has that money at the time I buy the gift card not when whoever I give the card to spends it. Is this really any different then buying an Amazon gift card other then you can choose the amount to put on it?