> In Africa, while there was a lot of colonization, in most places the indigenous people were not displaced (and replaced) to the extent that they were in Europe, Australia, or the Americas

Huh? The Bantu expansion mostly happened well within what in the rest of the world is the historical period. The people the ancient Egyptians documented to their south do not exist today. The replacement of the population of South Africa was late enough that it happened under white rule.

There was no phase where African people were replaced by Europeans, but that's not at all the same question.