Found the backup files in /var/lib/unifi/backup/autobackup as you said. However the user they are controlled by is unifi. I’m guessing when you install the unifi controller it creates its own user. I was able to change the permissions so that any user had access to the folder however every time the unifi user creates another backup the permissions are not allowing others to read, write, or execute. Because of this the auto backup on the Synology fails to perform the backup because it doesn’t have permission to backup this file.