Are these features being hosted as a service or just stored in a gdb?
I am using AGS Dashboards, accessing a Hosted FeaureLayer than has been created by AGS Survery123
I was thinking you could set a filter which provides a query similar to a definition query in ArcMap or ArcGIS Pro. Not sure about the hosted feature in Dashboards or Survey123. Can you view it in your ArcGIS Online content? Possibly make a view of the data? Use that for your dashboard?