I was gambling with fiat before, both on local gambling sites and a foreign gambling site, the payment which is through my master card is fast after the first time setup but the government still have control over fiat than crypto, especially for cross-border transfer that my country's government does not allow more than $100 per month for foreign transactions on my master card.

Crypto transaction is also fast, and cheaper than cross-border transactions, it makes cross-border transactions to be easier too. Since I  joined this forum, I have preferred to use crypto instead.