No you won't get 245's as an upgrade. It will be 235 Falken Wildpeaks. Don't worry if you end up with the Pirelli tires, you'll need a new set by 22500. That is when I put the Falken's on. We use those tires on all of our vehicles and they last. The Pirelli's do not. So up to you when you want...
Same problem...I have 36006 miles on an April 2022 purchase. In my defense I am a hiker and became obsessed with S UT. Driving from S CA to Moab and all in between several times has added about 10,000 miles but all of them amazing.