From what I understand, Fossil was designed for single developers or small teams where all developers are trusted to push directly to the trunk. In other words,

From what I understand, Fossil was designed for single developers or small teams where all developers are trusted to push directly to the trunk. In other words, the model used by sqlite (the same person made both). It's probably possible to set up a pull/merge request workflow in fossil, but that isn't what it was designed for