Tire pressure advice is all about load on the ( seperate) tires.
So if you know the exact load on the axles or better seperate tires for the condition you drive it ,you can calculate the needed pressure for that with some reserve for pressureloss in time, unequal loading R/L, incidental extra load or loadshifting etc.
But as long as you dont know the excact weights on the sepetate axles or wheels , you have to be extra carefull.
Risk is that you take to low pressure and it even gives better comfort and gripp , but at a sertain moment your tires get that much damaged, that you have a blow-out, with all the missery that goes with it.