You seem concerned with there being some universal all emcompassing purpose.
I have seen nor heard nothing to indicate that there is any such thing.
I am pointing to the common opinion here: That one is here because father-mother's sex act. From that I am not drawing purpose for the universe but the pre-dilection of all (or most) individuals.
I am not saying there is no "purpose".
I am saying the "purpose" is per the individual.
Each person decides their "purpose" for themselves.
Again each person's purpose seems to be only to create progeny, as per answers.