Answer

MSI Notebook display uses Organic Light Emitting Diode (OLED) technology that provides high contrast and high resolution. Unlike traditional LCDs, OLED displays have no backlight, it emits light through each pixel, thus allowing for a thinner display and showing a larger range of light and dark areas in the images/videos, the true black and pure white color to make the image more vivid and realistic. OLED provides high brightness, wide color support, and high color accuracy that improves the viewing experience. 

OLED display may also experience some visual changes after using for longer periods of time, such as "image persistence" or "burn-in", showing a faint remnant of an image even a new image shows on the screen. This is expected behavior and the characteristics of OLED displays. This phenomenon usually occurs under extreme conditions, where the same high-contrast image is continuously displayed for prolonged periods of time.

Image persistence can be prevented by using the display sleep function in Windows to turn the display off when it's not in use, or to make sure that a static image doesn't show on the display for long periods of time by setting a screen saver.

Avoid Image Persistence: Set System Screen & Sleep

    a. Select Windows key > Settings > Power & battery > Screen and sleep

    b. Suggested setting to turn the screen off after "5 minutes" for both battery power and when plugged in. (Keep the default settings) 

Fix Image Persistence: Run Screen Saver or Turn the Display Off

    a. Select Search icon (or press Windows key + S) > enter "screen saver" > select "Change screen saver"

    b. Choose/Setup ideal screen saver and set the start run-time shorter than the time set in screen and sleep.

    c. Keep the screen saver running or turn the display off for approximately as long as the image was displayed.