Download (shared) albums from iCloud using the sharable link.
Execute the script on a Linux machine (or WSL) by running the command
bash iCloud-downloader.sh <URL> <target folder>
in the folder where the file is located. <URL> is the sharable URL generated by Apple Photos and <target folder> is the path to the folder where the files need to be saved.
NOTE: to run the script jq is needed; to install it (in Ubuntu) run the following command
sudo apt-get install jq
For other distros take a look at this website.
In order to move the downloaded photos in the Linux VM on Windows we can open a new File Explorer window and type in the address bar
\\wsl$\<WSL Distro>
where <WSL Distro> is the Linux distribution used in WSL. For example, if WSL is running Ubuntu, the previous command is
\\wsl$\Ubuntu
We can now access the files inside the VM by navigating to Home -> <User> -> <target folder>.
The files can now be copied from that folder to the desired one.