Thank you for your continued feedback. As many people have pointed out, this is available on mobile today. Support for replying to a specific message is on the backlog for desktop. I’ll let you know when we have progress to share. Thanks.
This continues to be on our backlog due to prioritization of other work items. We will update when there is more to share.
This feature is on the backlog. I will update you when we have more details to share.