A:Answer The yellow-green tint you're describing, especially when compared directly to a store model, does sound like it could be a hardware defect - possibly related to the display panel itself or the backlight.
Here are a few things worth checking:
Color profile: Make sure Windows/macOS hasn't applied an unusual color profile (Display Settings > Color Management on Windows, or System Preferences > Displays > Color on Mac)
Night Light/Night Shift: Ensure these features are fully disabled
Graphics driver: Try updating or rolling back your graphics drivers
If you've already ruled these out and the screen is noticeably different from the store display under identical settings, that strongly suggests a panel defect. This could be:
Defective backlight LEDs with incorrect color temperature
Panel quality control issue (some manufacturers use panels from different suppliers)
Calibration problem from the factory