Open the Quick Settings panel (click the time in the bottom-right corner)
Select the Rotation or Screen Rotation option
Choose the desired orientation (Portrait, Landscape, or Reverse Portrait/Reverse Landscape)
If you don’t see a rotation option, press Ctrl + Shift + Refresh (or Ctrl + Shift + F3) to toggle rotation settings
Alternatively, go to Settings
Open Device
Select Displays
Enable Screen rotation (if available) and choose the orientation options