I am an end use providng training and have been told we are in an islands mode but there does not appear to be a "crosswalk" between teams and SFB. If I'm in teams but not logged into SFB I appear in SFB as Offline
Yes, by definition, Islands mode keeps the communications within the respective applications (Teams-Teams, SFB-SFB). Using this approach, user adoption is critical to ensure that both applications are used during the transition period. Highly recommend checking out the workshops Lisa linked above. Thanks for the question!