Worth noting that the Chinese ambassador also called it the Malvinas throughout, not the Falklands.
Map of countries that support Argentina’s claims in the South Atlantic
DPRK, Laos, Iran are anti-imperialist countries (and arguably South Africa) which do not. There are Euro imperialist countries which do. This isn’t totally clear cut.
Even if it were, that many countries in the Global South rhetorically support a position does not automatically make it correct, even if that is often a useful heuristic. NAFOids post maps of Global South countries which voted in the UN to condemn the Russian invasion of Russia. So what?