Yes, due to the characteristics of the material used in OLED panels, permanent burn-in or reduction in brightness may occur.
These problems are not a malfunction.
Images that may cause burn-in :
1.Masked images with aspect ratios other than 16:9
2.Color bars or images that remain static for a long time
3.Character or message displays that indicate settings or the operating state
4.On-screen displays such as center markers or area markers