Question about Charger Compatibility before Carvana Purchase

I'm close to pulling the trigger on a 2020 Premier through Carvana. The one potential issue I found is that the photos of the vehicle show a Lectron 15amp Portable EV Charger Compatible with Tesla. From my understanding, this would not be compatible with the Bolt, since the Bolt uses a J1772 connector. I tried asking the Carvana Customer Advocates through their online chat to confirm if the charger is compatible, and they have not been able to confirm. They did submit a ticket, and have held the car for me for 24 hours while it's investigated, but I wanted to seek this community's insight in the meantime. Based on some of the initial responses from Carvana to my question, I'm not totally confident that they're going to give me an accurate answer, or assurances that they will be able to swap in a compatible charger if indeed this charger is incompatible.

So what's the deal with this? Am I correct that the charger pictured wouldn't work with the Bolt? From what I can tell, it's this one from Lectron - https://ev-lectron.com/products/lectron-level-1-tesla-charger-110v-15-amp-nema-5-15-plug-16-ft-extension-cord-portable-electric-car-charger-for-tesla

Why would this even be included with the Bolt if it isn't the right charger? Perhaps the previous owner had a Tesla and bought an adapter for Tesla > J1772 to use their charger for the Bolt? If so, I would imagine that adapter would be included in the box. But again, I want Carvana to confirm that for me before I purchase.

Final question: if this charger works with the Bolt (with a Tesla > J1772 adapter), does the "15amp" description for the charger mean that it will always charge using a 15amp draw? Or will the Bolt still only give Level 1 charge options of 8amps or 12amps? The standard outlet I intend to use in my garage shares a circuit with a couple other things, so I have been planning to charge at 8 or 12amps anyway. I wouldn't want to be stuck charging at 15 amps, since that could trip the breaker for this circuit.

Thank you in advance for any insight!