I can't see any high idling, what are your actual RPMs? Are you sure it's idling high and not just the noise of the fan you're hearing? At 240f the fan should be on.
These trucks are programmed to run hot, you can see on the gauges that oil temp is still well within what Ram considers "normal".
If you take that screenshot into a ram dealer they're going to say "working as intended", because that's how they all work.
If you get the overheating warning, then definitely take a pic of that and send that to the dealer, because from what I see here it's all looking "normal" (though it's hotter than I would prefer too, that's simply how they're designed to run so dealer won't fix it).