As "A-Team" mentioned above, the first thing to do is disconnect the battery for at least an hour, preferably two hours. Reconnect battery and leave the vehicle alone for another two hours. Drive it for an hour, preferably on the highway, turn it off and leave it alone for another two hours with the battery connected. Then drive it normally. If any of the gremlins you describe are due to an incomplete or an interrupted OTA update, that sequence should get rid of at least a few of what seem like "electrical gremlins" (which most are not, most are "operating system gremlins").
.
Also, if you leave your truck parked for more than a few days, it's a good idea to use a battery conditioner, for example a Noco Genius. As others have mentioned above, these vehicles are very susceptible to low-voltage events, and a single, brief low-voltage event can toss out more error codes than you can shake a stick at. So it really pays to keep the battery topped off at all times with a modern "battery conditioner" (some call them "battery tenders"). There are multiple good brands, but FWIW, I have had very good luck with two of my vehicles with the Noco Genius product family of battery conditioners (you can buy a small 3-amp model that is designed to permanently mount under the hood, then all you have to do is connect it to 110 volt AC extension cord, no fiddling with battery clamps). But even if you don't go for a battery conditioner, at least try the total sequence I described above - it can't hurt and it might well help.
.