There are two folders in the archive: one contains saves from before the meeting with the doctor (right after the prologue), and the other contains saves from right after the first meeting with Sam. I tried to close them all. Just in case, my Ubisoft ID is: "85a8bb13-3d41-49c9-acc9-1738fc90e604"

Installation:

Download the archive with your save
Disable cloud sync (in Ubisoft Connect or another launcher)
Go to the root of the "Ubisoft Connect" program
Next to the "savegames" folder
Next to the folder with the name of your Ubisoft ID
Next to the "46" folder
Unzip the desired save from the folders in the archive to this folder (replacing it if necessary)
Launch the game
Check the save
Exit the game
Enable cloud sync (the same way you disabled it)
If there is a cloud sync conflict, select your local save (the most recent one)
Done!

Author: Alicelel