Microsoft 365 Roadmap
RM563810Outlook: Navigate Your Favorite Folders Without Expanding the Folder Pane
Summary
You can now quickly switch between your favorite folders without opening the full folder pane. When the pane is collapsed, your favorite folders appear as a vertical list, giving you one-click access to the folders you use most. Each folder shows unread or total counts so you always know what needs attention. Right-click any favorite for the same options you're used to, and your selections stay put across sessions. It's a familiar experience for anyone who loved favorites in classic Outlook, now built right into the new Outlook. #newoutlookforwindows