System notifications are silenced

When I share my screen in a meeting, I've noticed that my system notifications on my Mac are silenced.  

This seems like a great feature for most cases, but I'm pair programming with someone and have been in all-day meetings sharing my screen.  I've been missing important company conversations on Slack.

Does anyone know how I can disable this feature?  I've searched all through settings and I don't see anything that lets me toggle this off.