We did something like that on a private Minecraft server 15 years ago, where everybody was required to have an identi.ca account for this server (status.net, like mastodon today). All messages appeared posted to the walls of a large library building in the middle of the world and people could post to their accounts from the ingame chat.

It worked really well for about half the people, the other half ignored it completely.

I wouldn't mind if today's office chats like Teams or Slack added a microblogging feature where you could subscribe to interesting colleagues.