The new preview build adds tabbing functionality.
Back in the day, when you wanted to have multiple web pages open at the same time, you needed to open multiple windows, which was a rather cumbersome way of handling things. Then, in the mid-2000s, web browsers started utilizing tabs, allowing users to keep multiple pages open in the same window where they could be quickly and easily accessed. The latest preview build of Windows 11 is looking to take that concept and apply it to the regular file browser.
According to the Windows Insider Blog, the new preview build, Build 25136, has added tabbing functionality to the file explorer, allowing you to have multiple folders open in the same window. Much like in a web browser, you can keep a line of tabs open on the window’s title bar and swap between them with a quick click. Do note that this feature is beginning in a limited roll-out, so not all preview build users will see it right away. Depending on the feedback the developers get on the feature, it’ll be gradually expanded to more preview build users in the near future.
— The Verge (@verge) June 9, 2022
In addition to the tabs, file explorer windows now feature a revamped left panel that’s intended to make it easier to jump quickly to folders you use frequently. You can pin folders and file locations both on your local storage and in OneDrive cloud storage, and in either case, the address bar will clearly spell out your folder path so you don’t lose track.