iCloud App is NOT Working in Outlook 365 for calender sync - no add-in

This is an "old" problem, but it looks like nobody bothers about it!!!

I use WIN11 with outlook 365, have all my calender with on shared with my wife on my iPhone, used to have icloud wich worked fine, lately I had the bad idea to uninstall icloud, because kept popping up on computer start, now I reinstalled icloud and it does no longer work for the sync for my contacts and calenders and after installing there is no add-in of icloud in Outlook. Tried a lot of different stuff, nothing.

In the web, there is a lot of old stuff talking about, but so far no solution and I think I´m not the only one.

Any help? Thanks