Unfortunately, some of this data is simply not in the QW database - which makes building reports on this data a little tricky.
1: Is the below useful. This shows all quotes, within set dates that have been uploaded but not yet viewed.
2: Set the 'What' to Customer Activity - this will shows quotes still open in white (not orange)
3: QuoteValet insight could be the best place here. This can show all quotes where approval has been requested (but not granted)