Z, never leaked a lot but most of the coolant (dried) stains were on center and driver side duct flaps.
If the under dash A/C condensation tank drain is clogged - passenger side carpet will be wet. If A/C has been run a lot under humid conditions - when car is parked there should be a water drip on the driveway (near/under car's battery area). If no drip on the driveway - could be a clogged drainage hose (wasps can get in there and build a nest --- as 1 issue).