I own an E7 LG OLED.
I replaced a Sony OLED with it, the Sony's operating system was diabolical, the LG OS is an absolute pleasure to use. The Sony had 'slightly' better motion, but barely noticeable. Definitely not worth considering over the poor OS. The Sony lasted two weeks, before that a Panasonic OLED that lasted two days.
It's almost four years old now and still working wonderfully. Before my entry into OLEDS I had a Panasonic DX902B, widely regarded as one of the best pictures a tv has ever produced, and it was very very good. But the OS was even worse than the Sony, it weighed more than a tank and the LG smashed it in terms of picture quality.
I wont ever divert away from LG now, and I won't ever divert from OLED, it's just too good compared to alternatives. Do it once, do it right and stop convincing yourself LEDs are better because they just aren't!