Yes a prepaid debit card is a type of open-loop card.
The two main types of open-loop cards in this industry are prepaid gift cards and reloadable prepaid debit cards. You probably see the gift cards all the time if you live in the US, they are often on an endcap near the front of grocery stores and pharmacies. Once the funds have been fully debited from the gift card account the card can't be used again, and these also expire after a few years if they aren't redeemed. Reloadable debit cards are basically a simplified bank account often used by the underbanked or for people who may not want to use a debit card tied to their bank or a credit card for whatever reason.
For the most part folks can use these products to make any purchase that one could make with a normal debit or credit card, but there are some exceptions to that. I think most of the streaming services don't accept them, and probably many other subscription based services that use periodic charges to an account.
The two main types of open-loop cards in this industry are prepaid gift cards and reloadable prepaid debit cards. You probably see the gift cards all the time if you live in the US, they are often on an endcap near the front of grocery stores and pharmacies. Once the funds have been fully debited from the gift card account the card can't be used again, and these also expire after a few years if they aren't redeemed. Reloadable debit cards are basically a simplified bank account often used by the underbanked or for people who may not want to use a debit card tied to their bank or a credit card for whatever reason.
For the most part folks can use these products to make any purchase that one could make with a normal debit or credit card, but there are some exceptions to that. I think most of the streaming services don't accept them, and probably many other subscription based services that use periodic charges to an account.