Showdown result
Your result depends on whether you stopped, answered incorrectly or completed the round. In tibbi those outcomes are not the same thing.
Round status
That button exists for exactly this reason: knowing when to stop while you are ahead is a skill that carries into real life. tibbi records it as a good outcome, not as giving up.
Answer review
Finish the round to see the relevant question review.
Round finished
Your tokens are in the ledger. Nothing else is required of you.
What happens next is up to you
There is no button to double your reward, no invitation to play on for a bigger prize, and no round that starts by itself. tibbi does not suggest a next challenge based on how you just went, and it never shows you how you compare with other people.