After some research, it turned out that in order to use all the delights of iCloud under Windows, you need to install the Windows iCloud Control Panel . From the picture you can see that this program allows you to synchronize data from the cloud directly with the programs on the PC. Looking at all:
Mail, Contacts and Calendar are synchronized with Outlook only.
Bookmarks sync with Windows Safari and Internet Explorer
The photo stream is poured into a pre-specified folder. It is noteworthy that there are separately provided folders for incoming and outgoing photos. This is a strange decision.