Has an International Rugby game ever ended 41-28?
Exactly once. On March 18, 2023, France beat Wales 41-28, and no International Rugby game before or since has ended that way. When it happened it was a scorigami, the first 41-28 in league history.
That makes 41-28 the 510th most common final score out of 844 that have ever occurred in International Rugby. One point away, 42-28 has happened never and 41-29 has happened never.