achow101 thank you for the insightful info. Also, if you can't find the hex 076b65796d65746121 from the db_dump, then the wallet is fake, does not have key metadata. Correct?

I have 10 wallets from what looks to be the most SEO prominent fake-wallet scammer. WALLET-DAT.NET LOMBARD
I checked them one by one in full synced bitcoin core. They are all empty, full balance transferred out early 2020.

I have many bitcoin core wallets from years ago (encrypted). How do I check their balance from command line? Loading each one in bitcoin core GUI is a painfully slow process that will take weeks/months.
At the very least, how can I extract addresses so I can check them online for their balance?
Been struggling with pywallet..
Thanks,