One interesting difference between “conventional” MMOs such as Final Fantasy XIV and mobile games with MMO elements such as Dragalia Lost is how they handle side stories and multiplayer “raid” content.
In your average MMO, raid content — typically defined as a series of significant challenges that are dependent on a much larger group of players than the game’s usual multiplayer aspect — remains present in the game after its introduction, but gradually declines in “relevance” as time goes on. In cases like Final Fantasy XIV, where there’s a significant narrative component, it remains worth engaging with to enjoy the story, but the more time that elapses since its original launch, the less helpful it becomes to players in mechanical terms.
In mobile MMOs, however, raid content is typically a limited-time affair, confined to an event that offers special rewards to everyone who participates for a short period of time. And that’s exactly what’s going on in Dragalia Lost right now.