Tokens on Monad
WMON, Wrapped MON, is 0x3bd359C1119dA7Da1D913D1C4D2B7c461115433A, 18 decimals. It unwraps one for one to native MON. It is the only wrapped asset this chain issues itself.
WETH is 0xEE8c0E9f1BFFb4Eb878d8f15f368A02a35481242, 18 decimals, bridged ether. Withdraw on that contract does not pay MON. WBTC is 0x0555E30da8f98308EdB960aa94C0Db47230d2B9c, 8 decimals, a LayerZero OFT. cbBTC is 0xd18B7EC58Cdf4876f6AFebd3Ed1730e4Ce10414b, 8 decimals, Coinbase Wrapped BTC via Chainlink CCIP. They are not the same coin.
USDC is Circle's 0x754704Bc059F8C67012fEd69BC8A327a5aafb603, 6 decimals, moved by CCTP. USDT0 is a different contract. Staking receipts aprMON, sMON, and gMON are not WMON and do not pay gas.