With the recent COVID-19 pandemic spurring a surge in on-line conferencing use, people are going to extremes to avoid engagement such as attendees looping videos of themselves to appear attentive in the conference. While creative, it does highlight the need to find ways to truly engage your audience in virtual meetings.
If you would like some help with your own meetings, this Harvard Business Review article provides some valuable tips.
Take a look: https://hbr.org/2020/03/how-to-get-people-to-actually-participate-in-virtual-meetings