Sometimes it's useful to return the maximum/minimum date in a dataset as an end to itself.
Example: I have an ETL project layer that I need to monitor to make sure it's getting updated. Rather than reviewing individual EditDates in the AGOL layer, I went to create indicators to return the minimum date (to make sure it's being emptied properly) and maximum date (to make sure it's being refilled). Since only Count seems to be supported for date fields, there's no easy way to get this information.
While the advice here (https://community.esri.com/t5/arcgis-dashboards-questions/most-recent-max-date-in-dashboards/td-p/33...) seems to workaround it, it's not as intuitive (or as easy to verify) as just using the date field with the same functionality available for numerics.
What I would really like is the ability to return a value with a SQL-style ("select... from... where....) query. But just supporting date field with the existing functionality would be helpful.