I have a 2018 Limited with the fancy pants four-wheel-drive with locking feature, low range all-wheel-drive system. I have everything a Trailhawk except for the air suspension which I did not want. And I’m not sure that I have the same rear differential as Trailhawk my differential does have an electronic control module on it but I’m not sure that it’s the same one on the trail hawk. I haven’t had any problems on the Oregon coast range up in the Tillamook Forest logging roads and in eastern Oregon it just seem to be a super capable nothing seem to challenge it that tow rating is incredible 6200 pounds and oh boy lots of space inside. There’s some great YouTube channels about WK2’s offroad like @prodigaloverland
Sadly, both my channels I've been using for learning on what the WK2 can do and how to do it went and got new vehicles. Prodigal got a JT, though at least the wife is now starting to bring the Trailhawk along (just did some trails at Windrock), and Cara at Ozark Overland Adventures got a wild pink JLU. There's one other channel out there, FunkyWk2 or something like that that puts it through some major paces, but he doesn't put out a ton of videos.
That said, I'm more than happy so far. Get that decent highway mileage, even fully loaded, and capable enough to take me anywhere I'm likely to want to go off road. Would I like a JLU fully decked out with a nice lift and running 39s? Sure. Given that I live in an area with no real overlanding or trail options nearby, would I want to drive said JLU 1500+ miles out to Utah or the like? Not on your life.