Very long Cesium Stories can be difficult to navigate. Hidenori Watanave used an interesting solution in his Ukraine story.
When the story got to be over 100 slides, it became difficult to navigate, and the operation of the map had become sluggish. So he split it into multiple stories, each categorized around a certain topic: 3D data, 360-degree panorama, and satellite imagery by city. Each story has links on the first and last slide to the other related stories.
Do we also want to consider a built in solution for complex projects like this?