The Hunger Games: The Ballad of Songbirds and Snakes revealed a lot about President Coriolanus Snow's past, and, according to one theory, it may have even hinted at his involvement in Haymitch Abernathy's Hunger Games. Haymitch was the victor of the 50th Hunger Games, also called the Second Quarter Quell, and though the Hunger Games movie never detailed that year's events, the Catching Fire book saw Katniss and Peeta watch reruns. The nature of the Haymitch's games fit perfectly with Snow's dark lessons and experiences in The Ballad of Songbirds and Snakes, which has led TikToker Dovemakes to theorize that the president served as Head Gamemaker for the event.

https://screenrant.com/ballad-songbirds-snakes-theory-snow-responsible-haymitch-hunger-games/