On a computer that is fully synchronised with Steam Cloud saves for Football Manager, go to Load or Save game and select the 'Cloud' tab.
Here will be listed all your saves on the cloud. Select a save game and then the 'delete' button to remove them from the cloud.
You must have an active Internet connection to use the Cloud Save Settings.
You can also manually remove them by visiting the following location - C:\Users\YOUR WINDOWS USERNAME\AppData\Local\Sports Interactive\Football Manager 2020\cloud\games
Edited by Neil Brock