OLEDs can suffer screen burn. If they are left on the same news channel with a logo in the same spot 14hrs a day for 2 yrs!I went for the Samsung QLED...to my eyes any new screen is going to be better than the one I had before + I reckon your eyes just adjust to whatever you are watching.
Samsung have very good connectivity.....reason I didn't go for OLED is because I read that they can suffer from screen burn....dunno if its true but decided not to take the risk.
In normal use no chance.
Most high end phones are oled.