I posted this question on GIS Twitter and was informed that perhaps it would go farther if I posted this question in the various communities here on Geonet.
Why are the filtering tools different from ArcGIS Pro (Definition Query) which is the ideal filtering tool, in my opinion. The following screen shot shows the ability to select multiple entries or counties in one go. which is great.

For some reason, when I filter in ArcGIS Online, in order to get this same results for multiple counties I would have to use a set and filter them one by one. ( that I know of...)

Likewise for Operations Dashboard.

So could we pick one filter option and stick with that? it seems frustrating to have so many.
Just my 0.02 take it or leave it.