Until the last decade or so, anime based on manga would run mostly weekly while trying not to overtake their source material. If the anime got too close to where the manga was, they’d do filler arcs/episodes or just stretch the material out.
On some occasions, the anime would just do something completely different from the manga. Fullmetal Alchemist is a good example. The first anime more or less matched the manga until around the Laboratory Five arc. At that point, the anime went in a completely different direction so it wouldn’t have to go on hiatus or do filler.
Until the last decade or so, anime based on manga would run mostly weekly while trying not to overtake their source material. If the anime got too close to where the manga was, they’d do filler arcs/episodes or just stretch the material out.
On some occasions, the anime would just do something completely different from the manga. Fullmetal Alchemist is a good example. The first anime more or less matched the manga until around the Laboratory Five arc. At that point, the anime went in a completely different direction so it wouldn’t have to go on hiatus or do filler.
“We’ve had too much nuanced exploration of war crimes and religious conflict, time for magic literal Nazis.”