So I know speakers have access to the chat. However, when people are speaking/presenting, generally they don't monitor the chat because they're focusing on their presentation. There are times when we'd like to send a quick notification to the speaker like "talk slower", "fix your mic", or "i can see your kid in the background".
It would be nice to have a chat feature where a bubble, an icon, or an alert pops up ONLY for whomever is speaking/presenting at the moment to be able to send emergency messages to them.