Hi @Ald0, welcome to the community.
Using gift cards to pay for anything, other than within the store the gift card has been purchased for, it a big non no.
If someone asks to be paid in gift cards, it should ring loud alarm bells that it is a scam (see Scamwatch). Scammers use gift card as their preferred payment as the money is difficult to trace, it can’t be charged back (like a credit card and potentially an EFT) and they get the value of the gift card quickly.
They also often ask for photos of the gift card when panels are scratched, so that they can quickly fleece their victims of the card’s value.
I’ll say it again, if anyone asked to be paid by a gift card, it is a scam and don’t proceed with the purchase/communicate with them further.