Has a FIBA World Cup game ever ended 74-56?
Exactly once. On November 26, 2020, Portugal beat Cyprus 74-56, and no FIBA World Cup game before or since has ended that way. When it happened it was a scorigami, the first 74-56 in league history.
That makes 74-56 the 475th most common final score out of 1,178 that have ever occurred in FIBA World Cup. One point away, 75-56 has happened never and 74-57 has happened 3 times.