eBay Mandates include both Required and Preferred Aspects (Item Specifics). These are classified by eBay and are intended to help guide sellers as to which Item Specifics must be completed, and which should be completed.
There is actually a third classification of Optional, but these are not included in the eBay mandates thus far.
Only reports that are run on the 2020 mandates after 12 February will show this information. If your report does not (and only shows suggestions), then please run the report again.
The report will now breakdown the listings related to Required and Preferred Aspects:
The totals are related to the number of listings with action required, not the number of aspects. As you complete the listings, the totals related to Required and Preferred will reduce.
Within the report, the totals are also shown;
The totals can be used to filter (by clicking on them)
And for the aspects, there are icons that indicate if they are required or preferred:
The Optiseller Category Lookup Tool also shows this information for all categories, including the optional aspects: