I think this i misleading and can stifle imagination: “For game development in Unreal Engine 5.0 and beyond, the Levels window has been made obsolete by World Partition”. As far as I can understand world partition is not the correct tool to create noneuclidian levels where e.g. things are bigger on the inside, for those the level tool is needed?
The videos for the skeleton editing documentation has a single video that replaced all previous videos, it seems like after the 5.4 version of the documentation the videos somehow got replaced.