Horizontal black lines on my iMac 2021 24" screen
Since a year ago my iMac 2021 14" started to show horizontal black lines at the bottom of the screen, now after a year the black lines grow bigger reaching now at least 25% of my screen. My iMac is up to date in software ... I see no solutions on the forums. Since this is an iMac I cannot easily replace the display.. I need solution from APPLE ... help!
iMac 24″, macOS 15.0