On the old Meetings Platform there was an option of using an Arrow Pointer while Annotating.
If the Arrow Pointer was used, the participants were able to see who was pointing to which information on the shared page.
That was very helpfull during interactive collaboration session when e.g. a decision is needed. Of course it could be done with slido, but this is not so "interactive" as the arrow pointer was. Compare it with a real meeting with a real whiteboard, where the participants were using Dots to mark there preference.
Unfortunatley with the "New WEbex Meeting Suite" this feature is gone.