I was doing some work and testing in mine for about 2 hours. Hot day, so I had the AC on for those 2 hours. I can’t say how exactly how badly it affected my miles to empty, but it was bad!
What a beauty! Looks just like my 2023 XL. If I can make one suggestion, it would be to get the windows tinted. It will darken your front windows, and they will also run a strip across the top of your windshield. Run you about $150 at the dealer.
It takes an average. So, say when you fill up, you reset your trip odometer to zero. Initially, it will fluctuate wildly, but as more and more miles are put on it, it will stabilize.