The recommended pressures are purely that, recommended.
By someone who doesn't know you, how you drive, what you like, how good or bad you are.
As the operator it is up to you, not the manufacturer or supplier, to ensure your own safety, and that of others.
You can tune your drive a lot by varying pressures, if you know what you are doing. If you don't. the maker's recommendations are always good.
After a lot of driving, I always put in 40 all round, as a starting point. I sacrifice traction and grip for more feel and lightness. I may reduce to 15 in snow.
You must do what is right, for you.
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