These are the top 5 stablecoin chains backed by $USD in the world. $PYPL's $PYUSD stablecoin is #5 in terms of market cap, but it's relevant to note that $WLFI right now is more of a empty market cap with little usage, and $BUIDL is getting heavy usage, but not for payments or Web3 applications. Yet we can see how dominant $USDC and $USDT really are relative to these other tokens - and they're still growing rapidly.