It comes with a lot of improvements.

Samsung released the One UI 3.1 update for the Galaxy Z Fold yesterday, and now it’s the Galaxy Z Fold2 5G that’s receiving the latest version of Samsung’s custom Android skin.
Samsung doesn’t tell what countries it’s seeding One UI 3.1 in, but it did detail the changes the update brings to the foldable smartphone.
With One UI 3.1, multi-tasking becomes easier on the Galaxy Z Fold2 5G, since users can now quickly return to up to three previously opened Multi-Active Windows on the main screen via the Recents tab, while also being able to bring two Multi-Active Windows from the main screen to the cover screen.
You can also open a Multi-Window directly from the notifications in the Quick Panel now by long-pressing the relevant notification and then drag and drop it onto the screen. Besides, notifications in the Quick Panel are now categorized, and you can quickly switch between different media controls in Quick Panel with swipe gestures.
With One UI 3.1, Samsung syncs the weather widgets on the main and cover screens to offer the same information to the users while also allowing them to turn these screens off with a double-tap or a palm touch.
Samsung has made some improvements to the Camera app as well. It now lets you adjust the controls’ position when shooting in Flex Mode, which also gets Delete and Share buttons in the preview window.
Besides, when you are making video calls in Flex Mode, you can fill the top half of the screen with the video of the person on the other end.
In addition to all these improvements, Samsung has updated the Light and Dark themes on the Galaxy Z Fold2 5G with One UI 3.1 and redesigned the vertical volume slider to reduce the screen’s visual clutter.