His address received besides little breadcrumbs 60 tBTC and when he likely paid back or to whomever 20 tBTC, he transfered 40 tBTC to himself as change from the initial 60 tBTC chunk. Mempool.space doesn't recognize such a change transfer or self-transfer properly. Those 40 tBTC were then later transfered to the same recipient address that got the first chunk of 20 tBTC.
It's correct to say the address accumulated inputs adding up in sum to 100.x tBTC. In reality he only got 60.x tBTC in total from other entities.
Anyway, why asking for a loan of intended-worthless coins without explanation of use-case?
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It looks a bit fishy, but still it's only worthless Testnet3 coins. With such an account he can afford to get negative trust if he fails to pay back the loan.
