I disagree with the notion that "live chat is for the things that can get lost." If the chat platform you're using has advance search features, announcement channels, and message pinning you can easily find information you're looking for and, in my personal experience, this is usually faster than searching through emails. Despite their major privacy concerns, Discord has an amazing search implementation that I wish more developers would take inspiration from.
Perhaps my view is influenced in part by my young age and by the culture of the company I work for, but I've always felt that people around me waste valuable time formulating emails to try to capture all edge cases of the reply. And usually this doesn't work, so multiple follow up emails over the course of an hour or even multiple hours are needed for something that could have been solved over text chat in mere minutes.