Samsung has made a change in its Android 15 update, One UI 7 that may polarize users – the notification tray is now separate from the Quick Settings panel. This move away from the long-standing split-pane setup may break muscle memory for some, but Samsung’s implementation is considered fair and logical.
The main benefits of this new setup include minimal behavior changes for notifications and a well-designed gesture at the top of the screen. Users can swipe left or right to dismiss notifications without issue, and the swipe area is forgiving, allowing easy access to both notifications and Quick Settings.
A key feature of this update is its optionality – users can switch between “separate” and “together” panel settings through a simple edit option in Quick Settings. This flexibility allows users to adapt to the new layout at their own pace.
Source: https://9to5google.com/2024/12/05/samsung-one-ui-7-quick-settings-notifications-split