Is the word peoples correct

Answer 1

The word "people" is already a group noun, which uses the plural of most verbs. The unusual term "peoples" can be used to indicate separate societies or groups (e.g. "a number of the peoples of Africa") or as a conjugation of the rarely-used verb form, as "When a new population peoples a specific area..." (Better verbs include "settle" or "move into".)

Answer 2

Yes, "peoples" can be correct when referring to multiple distinct ethnic or cultural groups. For example, "The indigenous peoples of the Americas have diverse cultures and traditions."