Quote:If you use a recent version of Outlook, you’ve probably noticed a Junk Email folder, a Clutter folder, and something called Focused Inbox. All of these seem to affect where your mail ends up, but it might not be obvious why or when this happens. Here’s how they work and how to turn them off if you don’t like them.

Note: These features are available in the Outlook web app, Outlook 365, Outlook 2016, and Outlook 2019. If you’re using an older version of Outlook, you won’t see them.

What’s Junk Email For?

Junk Email is the simplest to explain: It’s the folder where Outlook sends mail it thinks is spam. This works just like the spam folders in other email clients, like Gmail’s Spam category.

Full reading: https://www.howtogeek.com/369807/whats-the-difference-between-junk-email-clutter-and-focused-inbox-in-outlook/