User Activity Report - Hybrid - Should online homed users show up on on-premise reports?

[Chris Stewart]

We have a hybrid Lync Server 2013 on-premise / Skype for Business Online environment.  I would like to use the Lync Server 2013 User Activity Report to troubleshoot issues.  If all of the users of a Skype meeting are homed online, should their activity show up on the Lync Server 2013 User Activity Report?

[#2]

Based on conversation with Microsoft Support, if the user initiating a meeting is homed on premise, user activity will show up on on premise User Activity Reports.  If the user initiating a meeting is homed online, user activity will show up on online User Activity Reports.