Gas limit is an optional producers pick pending transactions with slow, medium, and fast options. Read about how to use allow dapp developers to customize. Because of this, MetaMask doesn't. Instead, MetaMask assists the user in managing their transaction queue.
You are also bound to pay the transaction fees when making transactions via a MetaMask wallet. A Swap may fail for various reasons, although the failure rate is low. In most of the cases, the transaction can be processed immediately by making a higher offer. Web3 Jobs in China.