Outlook's spam folder automatically filters potentially unwanted emails, which you can access later.
The new alert was released via the Microsoft 365 Message Center. Businesses don't need to do anything right now, but they could get a notification on their Mail and Calendar apps in the future.
Have you noticed that New Outlook doesn't feel quite like the other native Windows apps you've grown accustomed to over the years? I poked around it briefly and could tell something was off. Context ...