Stage Manager
Stage Manager is one of the biggest new features coming to the Mac. Stage Manager is a new way to stay focused and access the most important apps that you have open on your Mac. When you use Stage Manager, the current window you’re using appears in the center of your screen, so you focus on it. Other open windows will appear on the left-hand side and feature a small preview. That way, you can quickly switch between your open apps and windows in a flash. If you like using different Spaces for different work-related tasks, you’ll be able to create group windows and put them together when working on a specific task. You’ll be able to switch between Spaces and windows whenever you need to.