As someone who uses iCloud Photo Library extensively, sharing an album of photos is horrible. You can’t just instantly share an existing photo album, you have

As someone who uses iCloud Photo Library extensively, sharing an album of photos is horrible. You can’t just instantly share an existing photo album, you have to select the contents of the album, then share it to a shared album. Even worse is that the photos will then have a copy uploaded into the shared album, even if the album was already on iCloud Photo Library.