The option to “discard” suggested contacts in your chat list is rolling out to users. We will be making further changes to make suggested contacts more relevant for new users in the future as well, so marking as partially completed. Thanks for your patience with this one.
~Alex & the Teams teamKeith Calmes commented
Very confusing our organization doesn't NOT want o see a list of names except if in same group membership. Most names appearing do not have a license for Teams