If you happen to have a Mac, the easiest way to export all your stuff from Photos is probably osxphotos. It has an export command with options for downloading everything from iCloud, exporting originals as well as edited versions of photos and you can split the export into one directory per album as well to simply transfer existing albums.
If you happen to have a Mac, the easiest way to export all your stuff from Photos is probably osxphotos. It has an export command with options for downloading everything from iCloud, exporting originals as well as edited versions of photos and you can split the export into one directory per album as well to simply transfer existing albums.