Here’s some light reading material for you.Recommendation is exactly that by definition...a suggestion...not an absolute rule or number; otherwise it would be stated as so. Everything within this topic is life preferences. The sheep of the world unite.
https://m.tirerack.com/tires/tiretech/techpage.jsp?techid=196
https://info.kaltire.com/the-right-tire-pressure-why-the-maximum-isnt-the-best/
https://www.cars.com/articles/how-do-i-find-the-correct-tire-pressure-for-my-car-1420676891878/