Many military ballots HAVE been returned, however, and remain uncounted.
This says they have been counted (https://www.ajc.com/politics/more-ballots-arriving-in-georgia-from-overseas-and-provisional-voters/2IKU3WM5XZD7FDQE5DAOKYXTMY/)
There were 8,899 absentee ballots from military and overseas voters that hadnt yet been returned to election offices in Georgia as of Thursday morning, according to the secretary of states office. Another 17,529 overseas ballots had already been returned and counted.
Military and overseas ballots have a later deadline than other absentee ballots, according to federal law.