What does "copy all data when sharing" imply?

The phrase "copy all data when sharing" implies that a complete duplicate of the data is created and made available during the sharing process. This means that all relevant datasets are included in the share, and a hosted layer is created in the process. This allows users who access the shared item to interact with their own instance of the data, independent of the original source.

Creating a hosted layer is particularly beneficial for ensuring that the data is accessible and can be utilized fully by others, enabling them to conduct analyses, create visualizations, and collaborate without being dependent on the original data's location or status.