I don't get it, sure it's nice to have quick actions in Slack but the types of content I write in Slack/Teams are not usually stuff I care so deeply about that I need to get the help of an AI to improve it really. If I really want something to be improved by an AI I can just pop over to OpenAI's portal and do it there.

It's just short messages, back and forth and I thought that was kind of the point of chat apps? This feature would be more useful in say, an email client where the communication is more often more formal.