It depends on the construction of the tire, the width of the tire, the condition of the roads, and total weight of rider+bike+cargo. After you do some experiments, your favorite pressure might be very different from the pressures people recommend to you. I'm only 160 lbs (73 kg), and I find myself being comfortable at surprisingly lower pressures, mostly because I'm so much lighter than people I know.

One way to experiment is to drop the pressure to a noted level and then see how close you are to bottoming out on potholes. This comes with an obvious risk, but how else do you get negative feedback?

Another tip is that most people tend not to top off our tires frequently enough. So it's a good idea to overinflate at least a little to buy yourself some extra time between top-ups.