Arc is read: Circle's chain, where the gas is USDC

Arc is now one of the chains Taxinger reads. Its gas token is USDC, and the coin a transaction pays its fee in is that same USDC, so a payment on Arc is one move of one asset in your figures — whether it was sent as the coin or through the USDC contract. Read your wallets again to have it in your figures: every chain continues from where it stopped, and a new one is read from its first block.