Well, the guy is an idiot for buying a Cybertruck in the first place.
I have no idea why it costs him $73. First, he's at less than 5% charge which is usually unheard of, as a daily driver you get down to around 20% and then charge. I guess the Cybertruck battery is that much bigger?
In a Model Y, charging from 20% to 80% usually runs between $8-$15 depending on when you charge. It takes about 20 minutes. You can also just charge at home for cheaper, just set it to charge after midnight and get the better rates with your power company if available.
I imaging filling a gas tank for a truck like a Ford F-150 has to be $100 or so.