That's probably what was intended, but the Vichy "territory" disappears on this map in 1948 (which is absurd, that was actually in 1942) and did not reappear la

That's probably what was intended, but the Vichy "territory" disappears on this map in 1948 (which is absurd, that was actually in 1942) and did not reappear later - especially not with a different territory: Vichy didn't control the Atlantic coast, while it is included in the south part of the divided territory from 1955 to 1958 here. It might instead be showing the advance of the US forces, and their retreat while the legitimate French government regained progressive control. But even disregarding the widely off date, the areas shown are very rough and inaccurate. Especially compared to the detail achieved in Italy and HRE in the previous centuries. I really don't think the quality of this visualisation is very good.