The 86QNED80UQA is a 86 inch 4K TV from LG. It was launched in 2022. It features a True 10-bit IPS panel.
The maximum resolution it can display is 3840 x 2160 @ 120 Hz with a pixel density of 51 ppi.
Picture Quality
After screen size and resolution, the next important feature of a display is its Color Reproduction, which is defined by its color gamut specification.
This TV doesn't provide a color gamut specification, so we have to take a guess.
Considering the TV features a 86 inch screen, it won't come with a cheap panel, so here we can assume its equivalent sRGB coverage to be 90-100% or above. Undoubtedly The color accuracy on this TV should be Lifelike! Meaning it will produce color accurate images.
Understanding the Color Gamut Specification
Color gamut spec of a TV is the measurement of the range of colors that the TV can produce.
A panel with poor color reproduction will produce undersaturated colors that will spoil your immersive experience.
Different manufacturers use different measurement standards to specify color gamut. Such as — sRGB (standard RGB), NTSC, DCI P3 Adobe RGB and rec.2020.
But you don't need to worry about that, here is a chart that you can use to choose a TV with good color accuracy.
Next in the list is Static Contrast.
What is Static Contrast ?
A TV with low static contrast ratio will not produce deep enough blacks and may bleed backlight as shown in the images below:

The static contrast ratio of above TV is 800:1. So make sure you get a TV with a static contrast of >= 1000:1. Ofcourse, More is better.
Other than black levels, a TV with high constrast ratio allows you to see more details. So, resolution and static contrast ratio go hand in hand in a sense.
If given a choice, always prefer a FHD TV with high contrast ratio over a 4K TV with low contrast ratio.
This TV features a static contrast ratio of 8000:1., good enough to produce deep blacks. For the record, it also comes with local dimming backlight which is a plus.
HDR is also supported on this TV in form of HLG (Hybrid Log Gamma) and HDR10.
Coming to brightness, it is can achieve a peak brightness of 250 nits, powered by Edge LED (Local Dimming) backlight technology.
Gaming Performance
If you are planning to use a TV other than using it as a TV — say as a PC monitor or Gaming, make sure to take a TV that features the lowest input lag. For gaming however, both the input lag and response time affects the performance.
Unfortunately, we cannot find the input lag specification for this unit. But as this is not a cheap TV from LG, we can expect an input lag of less than 20ms.
Understanding Input lag and response time
This lag is the latency at which your device inputs changes the content of your TV. For casual Non-FPS games, input lag doesn't matter much.
For best of both worlds, look for a TV that has an input lag and response time of less than 20ms.
Dimensions and Ergonomics
The width of this TV is 75.8 inches while its height is 45.9 inches.
Speaking of thickness, it is 1.8 inches thick. Overall it weighs approximately 55.52 kgs (including stand). Without stand, it weighs 54.52 kgs.
Speaking of ergonomics — a VESA mount with interface size of 600 x 400 mm is provided for wall-mounting. The unit doesn't come with either Swivel, Tilt or Pivot support.
Hardware and Audio
The TV comes with a 4-Core CPU. There is no data about the total available RAM on the TV's official specsheet.
Speaking of OS, the LG 86QNED80UQA runs webOS 22 Operating System.
For display connectivity, LG has provided two HDMI 2.0 ports and two HDMI 2.1 ports on this TV.
For connecting USB devices, it includes two USB 2.0 ports. Other connectivity ports include — 1x RS232 (C — mini jack), 1x Cable/Antenna In (Main — F-type female) and 1x Ethernet RJ45.
For wireless connectivity on this TV, you will have — Wi-Fi (5Ghz + 2.5Ghz), Wifi-Direct, Bluetooth 5.0 and DLNA.
Coming to audio, it is packaged with 2 x 10W speakers. It also comes with a built-in subwoofer. So you don't have to invest on any external sound system.
As for power consumption, it uses 254.26 Watts on average and 0.5 Watts on standby.
It supports a power outlet of 100 V - 120 V/50 Hz - 60 Hz.