I made a watch wallet in Electron Cash using those public addresses. The faucet address shows expected balance but the mined addresses only show the dust balances from 2021.
It's been a while since you posted about your case (May last year), and it's late here, so I'll read more tomorrow. But the first thing that comes to mind is you may have sent your coins to a public key instead of an address. In that case, Electrum won't show that balance in a watch-only wallet. It will work with the private key, but that means you're dealing with a hot wallet.
Feel free to give a summary of the current status (all Bitcoins moved to safety already?), I'll reply more tomorrow.