As a non believer I often wonder about this.
I'm somewhere between procreating, no purpose, finding joy, and just a freak occurrence of cells coming together in the right way at the right time. We're here, we may as well do something good. Or I've achieved my major purpose in passing on my DNA, I'm not sure how much use I am now except as a little cog in a big machine.
I gonna Party until they remove me from the respirator. I don't know about you guys.
"To crush your enemies, to see them driven before you, and to hear the lamentations of their women!"
Lol
Maybe the idea of life having a purpose is a byproduct of having evolved advanced consciousness and the prefrontal cortex. Animals don't seem to worry about such things. For them it's pretty much survival. Pets are a little different since their survival is taken care of, so they can live without worrying about those things.
Hopefully, it is whatever you want it to be! Make money? Save the rainforest? Become infamous? Enjoy!
I don't think there is any grand purpose. We can assign purpose, but those are individual missions people take on, not the purpose itself lending opportunity.
I guess I fall under the life has no purpose vote. Never understood nor cared what the purpose of life is. Life happens because it can.
Life has no inherent purpose. We propagate by exchange of DNA or some other form of reproduction. That doesn't ascribe meaning.