Or it could be a source error where you got these figures from.
Maybe, but the circulating supply is even higher on Coingecko than Coinmarketcap, I used Coinmarketcap. Which means the circulating supply is higher on Coingecko. Maybe both sites are not getting the value right.
Oh! Probably what happened, thanks for bring it clear.
So you earn just by storing the coin or token in your wallet without joining any staking pool? That would be cool but probably not the case here.
It is the case here, there are some coins you can connect to a node and stake directly on your wallet, some of other coins like solana, zilliqa, atom and some others can be staked like that too.