Congratulations, spreadsheet updated. The update today (Aug 8th) is about your BG being completed. It is not a new GU, as the tracker has a delay of 2 business days, you see the BG which was completed on 8/6 in tracker today 8/8 with the date at the top reflecting the same.
And the '2 new updates' is a bug, you would continue to see throughout your application journey, as it marks all the previously completed steps as new updates. When you have oath scheduled, you might see 8-10 new updates, so you can ignore that number.