Integrate WebDAV drive under macOS

In the Finder, go to "Go to" -> "Connect to server".

Enter the WebDAV path "https://syncandshare.desy.de/remote.php/dav/files/USERNAME/" and replace "USERNAME" with your account name before you click "Connect".

Next, please enter your DESY user credentials.

Then you will find your remote-folders as WebDAV mounts in the Finder.