You wouldn’t need to have this stage if you can obtain an NFT instantly with Ethereum on your exchange account. Even so the way NFT trade works is a little like going to some farmer’s market that won't take cards, this means you’ll want to hold profit your wallet. https://financefeeds.com/dwallet-network-to-enhance-multi-chain-defi-and-gaming-with-zero-trust-protocols-on-aptos/