Usually the output impedance of a PA is low (or very low) depending by the output power and on how close the last stage is near compression. So the impedance point is placed on the left side of the Smith chart.
The output impedance point is placed on the upper side of the chart (inductive) or on the lower side (capacitive) depending by many factors, including transistor type (BJT, MOSFET, etc) and PA characteristic and topology (single ended, push-pull, parallel, etc).