[EPIC] Catalog.data.gov Filters and "triggers" - Define and List

As a agency data manager, I would like to know what filters and "triggers" (keywords, themes, etc) affect the display and filtering of my datasets.

Please list what filters do which things between the harvest of the datasets and the display of data in catalog.
See this DRAFT AI created spreadsheet as a starting point. Feel free to use or start new.

Example question: What metadata field will be used to filter public, non-public, restricted public, if at all?

https://docs.google.com/spreadsheets/d/1iHqf2Q7Y_di1W_n6MX1hukN-628ULIlkkQhw7SBIWMg/edit?usp=sharing

Start with the linked draft Google spreadsheet, then trace the data.gov workflow from dataset harvest through catalog display and filtering. Document each filter or trigger, its effect, and whether metadata fields such as access level control it; done means the catalog behavior is comprehensively listed and explained.

Written by the indexing model from the issue text.