When packaging is complete, the destination folder will contain:
The items in the package are copies. The files used to create the package remain in their original locations and are unaltered by the packaging process.
With everything collated in a folder, share the package with others using your preferred method, such as cloud storage. Before doing so, review your licensing terms for all items in the package.
The Resource Manager's Collect feature may sound similar to Save as Package. However, it is designed to collate some or all of a document's linked resources in a folder and update the references to their new location. Also, it does not process fonts.