There are typically severals ways to turn Bitcoin into cash instantly, this are payment made easy on blockchain or crypto apps that enables users to transfer instant bitcoin to their various local accounts or dollars wallet.
1. Use a crypto debit card like the BitPay Card.
2. Sell crypto for cash on a central exchange like Coinbase or Kraken.
3. Use a P2P exchange.
4. Seek out a Bitcoin ATM.
5. Bonus: Gift cards.
Which either ways sometimes they could be a slits delay because of networks accessibility and severs but from reliable apps or blockchain it will definitely drop as verified transaction.
I don’t encourage using centralized exchanges to buy/sell bitcoins for people who care about privacy because you have to do KYC. It’s better to use decentralized exchanges like bisq to trade your bitcoins to fiat
bitpay.com › blog › cash-out-bitcoin
Is this the source? If it is, it will be better if you provided the link instead.