I have a 2020 AT4 with 5.3 V8 with 1800 miles. Did not drive for three days and went to start and truck was dead. Battery was at 3 volts. Charged all night. Took into dealer next morning. They did the break/ app recall service and said maybe you left a door ajar or something that drained the battery . Not feeling real confident that it want happen again. Luckily it was in garage at home. I live in S Texas so cold environment is not an issue.
I installed this Tailgatefix.com device and it works great. I keep my hitch removed when not towing, but did not want to worry about wife or buddy lowering tailgate step whenever hitch is in reciever. $100 bucks, but cheap insurance and piece of mind. https://www.tailgatefix.com/landing-page?gclid=CjwKCAiAhc7yBRAdEiwAplGxXwPuczcl4LybPeDxbuZNSz_OKwxBP02bV4eQx2rOQc_2bS6GWvMtMhoCrxMQAvD_BwE