Is Mondeo Three-way Catalytic Drip Normal?

When our gasoline engine burns, it will produce carbon dioxide and water vapor, which will be discharged out of the car with the exhaust system. It will drip when it is cold. All they see is an exhaust hole at the end to drain water. In fact, there is also a drainage hole at the bulge of the middle and rear end, mainly to prevent the vehicle from parking incorrectly and the water in the pump from being filled up.