Last, but not least, we see the Cooling Fan parameter. I always make sure to have the box checked. It cools down the material the exact moment the nozzle extrudes it and makes it solid
When you check the box it activates the fan and when you uncheck it, the fan deactivates
By clicking on the three dots, it opens the expert configuration, where we can adjust the fan full on at height (mm) and the intensity (%).