The Galaxy S21 series debuted with One UI 3.1, an updated version of Samsung's software skin that contained several new features, such as Google Home controls in the notification panel. Shortly after the S21 started to ship, Samsung began to update older devices with One 3.1.
Although some features will remain exclusive to the S21, this is still a substantial update, especially for devices that were updated straight from One UI 2.5. The Tab S6 Lite has also received its Android 11 update, but that tablet has only gotten One UI 3.0 so far.
