Hey @dhruvi155! Thank you for your post, that's a really great question!
We currently don't have a way to generate return labels using Square Online. A common 3rd-party application that many of our Customers use is Shippo, which can generate shipping labels on their end. If you have any further questions about Square's integration with Shippo, I recommend contacting them directly as they own and manage the integration.
Let me know if you have any further questions!
