Update everything via Windows Update
Reinstall graphics drivers:
Go to Device Manager → Display adapters
Uninstall → Restart
Turn off hardware acceleration (in browsers/apps)
Press Win + Shift + S
View the screenshot on another device or zoom in
If green streaks appear in the screenshot → software/GPU issue
If NOT → screen hardware problem
Shut down
Hold Volume Up + Power
If green streaks appear there → definitely hardware (screen or cable)
As your device is new so Request replacement (DOA / warranty claim)