I was reminded of someone I saw talking about their work on a super nice native Slack-style chat app called Quill. It got shut down after Twitter acquired them and had them work on Twitter DMs 🤦‍♂️

I tried looking up this app, but it's basically vanished from the internet even though it got acquired like a year ago. All that's left of the work they put into this is a few articles on tech sites and their website on the Wayback machine.

web.archive.org/web/2021120800