This model of TV has a backwards (BGR instead of RGB) subpixel layout meaning that if you plan to use it as a computer monitor text will be blurry and have a colorful fringe around the letters.
This TV also technically supports 4K 120 HZ but it reduces the image quality to unusable levels.
There's no downgrade in image quality at 4K 60 HZ but I'd think the main reason you'd want to choose this tv over an X80J would be the 120 HZ support, and it isn't worth the drop in visual quality.
If you're looking for a TV to use as a PC monitor avoid the X85J go with the X80J
This tv is amazing, and after much research it was the best overall screen for me to get in terms of features. It works flawlessly with my PC, and with my PS5. I love the color and brightness, the google home app, and the smooth motion flow mode. Top of the line if you ask me and worth every penny…
Very few apps for a smart TV. My Roku TV has tons of apps, this television does not. Remote will not control the TV with cable. Have to use a separate remote.