Microsoft has released the public preview of the ability to set the Exchange out of office (OOF) auto-reply from the Teams desktop and browser clients. OOFs set in Teams are synchronized back to Exchange using EWS so that the new auto-reply configuration is picked up by clients like Outlook and OWA. It’s a small but useful update.
A question about how best to set auto-replies for Exchange Online shared mailboxes to respond to messages arriving during a public holiday gives another chance for PowerShell to show how useful it is. You could do the work with Flow, but PowerShell is more flexible and capable when dealing with multiple shared mailboxes.