The Elden Ring Leda quest is arguably the most important in the Shadow of the Erdtree expansion, considering it's all about helping Miquella's most devout supporter track him through the Land of Shadow. Lady Leda's quest mirrors your own path through the story, though there are some extra steps you can take or ignore depending on how much you care about certain characters and getting special items.
In many ways, since Leda is so inseparable from the story, this guide is actually a step by step to the central progression of the whole expansion. Of course, this will include spoilers for Leda's questline, including the final quest step, but I've labelled the sections vaguely for that reason. All that said, here's how to complete the Shadow of the Erdtree Leda quest.
