WillC said:It is always easier to diagnose plant problems when a photo that shows the entire plant, including its pot, is available.
Let's start with light. "A good distance" from the window is too far. Your Fig should be no more than 3 feet from the south-facing window. Several hours of direct sun falling on its leaves is not a problem, as is commonly suggested.
It appears that you repotted your Fig into a bigger pot and that makes watering more difficult and increases the possibility of overwatering. When properly potted, most plants, including your Fig, can be watered thoroughly until some water runs through the drain holes. However, when a plant is moved unnecessarily into a large pot, the added soil tends to retain the water for too long and suffocate the roots. In addition, you may have used a potting soil that is too dense. Finally, you probably added new soil to the surface of the original rootball and that also tends to keep the soil around the roots too wet for too long.
I am concerned that the roots have been somewhat damaged during the repotting and/or by the excess soil surrounding the roots. Otherwise, new growth would be healthy and leaf spots would be minimal. Inadequate light may also be contributing to the problem.
If you can provide a photo that shows the entire plant, including its pot, then I may be able to give you more specific watering instructions. In the interim, remove all the soil that you added to the surface of the original rootball.