The evaporator is likely not icing up, as that would restrict the airflow through the evaporator and cause warm air to blow out of the vents.
A couple things come to mind:
Ensure the drain is clear, and that it is at the lowest portion of the evaporator case.
If water is condensing on the outside of the ducts, try wrapping them with insulation.
Metal outlets will usually have condensation and dripping (this was common on cars "back in the day"). There isn't much that can be done about this.
One thing that can help is, once the temperature in the car is where you want it, leave the fan on a medium setting and increase the temperature setting.
Insulating the under dash area (including hush panels under the dash) can help reduce condensation.
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