hi LG Team,
I have a C7 OLED, firmware is latest and up to date. I've noticed the OLED screen saver does not seem to start when a bluetooth device suddenly disconnects, the warning box will appear and remain indefinitely, which has the potential to cause burn in.
You can simulate this, pause a show you are watching, turn off the audio bluetooth device (eg speaker) - the Bluetooth Disconnect warning prompt will appear and the movie will stay paused on screen, along with the white warning box. This is worth investigating i think.
Thanks