A question for @Archibald.
Would the Iles Malouines and its dependencies have been an overseas département or an overseas territory?
The overseas département with the smallest population in 1982 was Saint Pierre and Miquelon (1982 estimate 6,300).
From the same source (Encyclopaedia Britannica Book of the Year 1982) the Colony of the Falkland Islands and its Dependencies wasn't self-governing and had a about 30% of Saint Pierre and Miquelon's population (1980 estimate 1,800).
That's a very pertinent question ! I would say an overseas territory (ies), considering the minuscule population and the sheer remoteness. There is a strikingly similar, real world example: Kerguelen islands, obviously. Incidentally, I often thought the Kerguelens were France very own Falklands - except without a menacing, obnoxious and revengeful neighbourgh like Argentina. Just like Réunion island (my own little corner of paradise in that ugly world) the closest thing from a foe is enpoverished Madagascar... 2000 miles away.
Kerguelen Islands - Wikipedia
en.wikipedia.org
If the Falklands had stayed with France, I think they would have been part of the following organization.
The islands, along with Adélie Land, the Crozet Islands, Amsterdam and Saint Paul islands, and France's Scattered Islands in the Indian Ocean, are part of the French Southern and Antarctic Lands and are administered as a separate district.