We don't get that with messaging now because everyone is on mobile. Folks with Bloomberg Terminals can have this IM experience, because they are sitting with it open all day. Slack is like this too...but only for people within your company.
And as a developer, me and the rest of us are sitting with our IDEs open all day; why can't we have IM back? Thus, devchat: an extension in VSCode that brings back the IM experience of yore.
It's all live, and messages are only shepherded between clients but never stored/viewed on a server. It's got themes for you to feel like you're back using AIM, or a Bloomberg Terminal, or for those who like iMessage.
Find devchat IM in VSCode extensions, tell your friends to join you, and enjoy chatting while you work! Any and all feedback is welcome, thanks!