The simplest additions to any online meeting, is when the presenter uses a "virtual whiteboard" and writes down notes taken from the whole group.
I was in one a week or so ago, the presenter used an old iPad, as a second screen, and used an Apple pencil to write notes, as she lifted the pencil, the handwriting recognition system put the note into text, clear for all to read.
Also drawing shapes, and highlighting, or lines from this to that. All snap into place, making a clear diagram in real time.
Also extremely easy to start a new page, or go back to an older one.
@corlin Oh that DOES sound excellent! Just what I was hoping for!