New Feature: Schedule Microsoft Team Chat Messages

When I sign on I don't want to be bombarded with new message notifications. I also don't want random users to be alerted when I am available, that feature's already a privacy violation (it makes some sense for managers to keep tabs on their teams but there's no mechanism in Teams to control "oh this person is a direct report of that person, so allow it", such as an AAD integration); adding further notifications, even indirectly, that a user is now available is just further eroding that user's privacy.

Messaging apps are asynchronous by design--you can just send your message and whenever the user is able to read it, they can read it. Stop trying to hamstring them by making them behave like outmoded communication methods such as phone calls, please!