Customize Email out to Users
It would be nice to select whether or not to send the welcome email to users. It would also be nice to customize the welcome email as our organization pushes the client app through SCCM, so it's not recommended to go directly to the download site and confuses users.
I'll jump onto disabling the welcome emails. We are planning a move to Teams from Persistent chat. I would like to stage the PC users in teams, but doing so means that every user will start getting emails for a product we haven't rolled out yet.