Many idiots over pressurize to seat the bead then never let it back out. SAME thing found on pops new 550 last year!!!
As for what pressure it not something others on a forum, such as this can accurately tell you. We do not ride where you do, We do not know how you ride. We do not know your size. All very important factors that dictate tire pressure.
Good news is you will need to ride more to figure out what works best for you!! Tough to take I know being REQUIRED to ride. Lol. But that's the best answer I can give. Try the recomendated pressure from sidewall and go down a pound or two at a time. Once you get there the tires will really hook up and you will be off! Just know optimal pressure will change as what your riding on changes. Hard pan is higher pressure. Rocks are less. Mud is in the middle. Experiment, the only person to give advise is someone riding with you that rides similarly has same tires and weighs about the same.
CW
It's not like a street tire where you can chalk the tread and ride around the block.