Wider the tire, lower the required pressure (generally speaking). The chalk test that people talk about is probably the right way to do it. With my 12.5 in wide tires, I have tinkered with different pressures.
AEV recommends 28 psi and that is what I ran my JK at. Even at that pressure, I still had more wear in the center of the tire, but that was over a period of years. I never experimented with lower pressures, but at 28psi, ride was good, fuel economy did not seem to be impacted that much, but I'm not trying to maximize fuel economy.
So, my advice would be 28 psi. It rode better than 37 (factory) tire pressure and tire wear patterns were acceptable. I thought 28 sounded low, but it makes sense if you take into account how wide our contact patch is.
I am running 28 psi on my 2021 XR and it is fine. When towing trailers with heavier tongue weight, I do blow the backs up to 33 or 34 psi to compensate for trailer tongue weight.
I noticed on my rear tires that they would run warmer when towing and that psi would rise more if tires were at lower pressures. Higher pressure result in less flex and less heating up, thus psi rises less from the starting point if you start with a higher tire pressure. Everything is a balancing act.