Bitcoin has a limited total supply of 21 million BTC but gold I don't think so. So far the total amount of gold that has been mined is 201,296 tons, an estimated more than 53,000 tons have not been mined but have been identified. And I believe that somewhere on earth there are still many places with gold that people have not yet found, they will continue to hunt until the definite source is exhausted. It can be said that gold does not have a specific total supply.

pic source: Kalo Gold