Where will it get a charge on a road trip.
Life, as we know it, is possible without the Tesla SC network (though building out the SC network is as good a proof of Musk's genius as I can think of). I have ventured out past the ends of the SC net in Quebec and encountered no problems in this regard. Every village of moderate size seems to have a Tourist Information Center with a CHAdeMO/CCS charger. I have, at this point, actually used more CHAdeMO chargers than SC's.
Abetterrouteplanner will now let you run hypothetical journeys with the Rivian vehicles so I suggest that anyone interested fiddle with that some. The first thing you will notice is that a road trip will cost you more in energy than in your ICE vehicle unless your ICE vehicle has really lousy mileage. This is because of the hideous rates EA is charging for electricity. Musk has said that the SC network will never be a profit center for Tesla and I believe that.
Since it is designed for dry camping, where will it get charged in the boondocks.
They say it is designed for that and it is marketed for that but the market is really clearly the weekend urban cowboy. None the less the answer to the question is "anywhere in the boonies where you can plug it in". This, of course, includes any campground that has electric service for RV's.
Someone posted on another forum that he'd just throw his generator and a few jerry cans in the bed and recharge with those. I laughed at first of course but then ran some numbers. If you are camping, or rather glamping, for a week and run the generator for a couple of hours each evening that's sufficient to recharge a Rivian sufficiently to get you back to a more robust charging station. There are, of course, some places where you won't be able to charge a Rivian just as there are some where you can't charge a Tesla.
If Scaringe is smart (and I think the fact that he has brought the company to the point where it is today is pretty solid evidence that he is) Rivian will make some sort of subsidized charging available and will probably install some stations in popular but remote places. It as necessary for Rivian's marketing as it was for Tesla's that something like this be done.
Who will do warranty work.
The same shops that do their repairs.