Also read as, I did a bunch of unpaid work because I'm salaried and in the end I have nothing to mention about life outside of work.
Why the cynicism? Some people like a challenging work environment where they can learn and acquire new skills. If you think learning a new skill is "unpaid work", you won't get very far professionally.
Seems like any first year role at a competitive firm, I don't really see the significance of sharing.