Earlier quoted context omitted.
Can you further explain that cash deposit to credit card payment process through an ATM? I've only ever used ATMs to withdraw funds, never to make deposits, so I don't know what that process would look like or which banks would let me do that.
I had no idea that was an option, but I see BofA[1] supports it. Seems broadly less convenient than online, but I suppose better than needing to wait in line for a human teller. 1: https://www.bankofamerica.com/banking-information/assistance...
Then I had an idea - I got a piece of black construction paper for a background and it was much happier taking pictures of checks on that.