Conversations involving multiple participants, allowing collaboration and information sharing in Teams
I can't agree more. Why this hasn't already been implemented is mindboggling. The chat side of Teams is, at least per our company, infinitely more useful than Channels. Channels is too more like a forum for the style of communication we require in a fast-paced industry, though the format does work excellently for less urgent discussions and for creating a more easily accessible repository of information. The focus of the app should be Chats first, Channels second. Hopefully none of the devs take this as some sort of "indicator" that they "need" to remove features.
While we're at it, Microsoft needs to look into why their mobile app isn't refreshing chats correctly, but that's another topic altogether.