Or do we keep throwing until someone has won two out of three? If Inflation is in play, do we need to play four rounds? What happens if there’s a tie in that case?
A: You keep playing games until someone has won 2 out of 3. There is no situation where no-one loses cards.
If Inflation is in effect, you would indeed need to play 4 games instead of 3. If that turns out 2-2, keep playing until someone gets a tie-breaking win. Like “sudden death” in an overtime tie situation: whoever scores first wins.