Star Trek canon says that humanoids were deliberately seeded across the galaxy by an ancient race, not random panspermia. It was established in the TNG episode

Star Trek canon says that humanoids were deliberately seeded across the galaxy by an ancient race, not random panspermia. It was established in the TNG episode "The Chase". It's mentioned in some other episodes but it's typically kept on the down low to prevent hurting/contradicting religious feelings/origin stories (in universe). https://memory-alpha.fandom.com/wiki/Progenitor https://memory-alpha.fandom.com/wiki/Progenitor