The Web Part Connectivity is very help feature and yet it is only available to on-prem SharePoint client as describe here Connect the map to other web parts—ArcGIS Maps for SharePoint | ArcGIS
It would be great if this can be implemented for MS365 users. It would be a valuable tool for geographic aware users to quickly filter record on SharePoint List.
This feature was brought up in 2016 UC, but it has not been implemented on MS365
