I can't find the ArcGIS app as an option when creating a new "tab" at the top of team channel? It would be great to have an online map appear and be viewable/searchable as its own tab within a particular team channel.
@DavidOutman - Totally agree with you. I too see a lot of value in that. This is something we are planning. We would like to release this capability in the near future following the 2021 User Conference.