Hi Horrg,
I run this exact setup. I have an old LG OLED65B7P, it’s a 2017 65" 4K TV. I’ve put 12K hours on it. I plan to replace it in a year or two.
I’m on KDE using Wayland. I’ve installed Arch Linux using the Arch iso, configured it the way I like it and then switched to CachyOS repos. I’ve tried CachyOS iso for 1 month and it was fine, but it was ~18 months ago.
It’s more of a DE thing than a Linux thing IMO. I would even say that it’s more about the TV/Display itself and your usage/habit with it. I set a solid black background and I set the taskbar to hide automatically. When I stop using the computer, I make sure that all my window are minimized and I put the pointer in the top right corner, so everything is black. I also use dark mode everywhere I can.
If you go OLED, you have to be ready day one! You have to be mentally prepared. Those display require more care than others. I’ve been able to avoid major burning, but I get some. Most of them are not noticeable outside of a burning test context. Only one little spot is annoying in a very specific color range, but even with that little burn, I consider the image quality of my 7yo OLED TV to be better than any new none OLED TV. I’ve no regret and I will go OLED again.
What do I mean by saying “they require more care”? You have to commit to make sure you don’t display static bright content for a long period of time. Like if you watch LCN 24/7, just buy something else. If you plan to use it for work, I would avoid it unless your work require premium image quality. I would not use an OLED display for coding and the likes. I use my TV for entertainment, which mean games, videos, browsing, etc. Make sure the content you display on it is diversified and you are going to be fine.
Also, don’t disable any burning prevention settings on your display even if they can get annoying at times.
I’ve nothing bad to report here. I tend to control those settings straight on the TV and leave everything default on the computer side.
I had one weird issue with it. The room where the TV is was totally dark and the TV was displaying a full pitch black image which allowed me to notice that some pixel was not totally off (some pixels was emiting very faint light). It looked as if the TV was showing very tiny little stars in a black sky, it was very subtle. I’ve found out it was because the computer didn’t select the optimum pixel format. I think it used YCbCr 4.2.2 or 4.2.0 instead of RGB. I fixed the problem by editing the EDID the computer use. I removed the YCbCr profile from it so only the RGB one remain and it fixed the problem. It’s hard for me to tell what was the reason for this problem and if you are susceptible to encounter it. I feel like this is an issue specific to my setup, but I don’t know for sure.
Usability => Premium, Performance => Premium. Image quality => Premium.
IMO, nothing beat an OLED TV for gaming (unless you require a 20000hz display for your competitive games) and movies. If you don’t game and watch movies/series/videos with it, I’m not sure I would go with an OLED. But if you do, you gonna have a very enjoying experice with it.
Once you tasted OLED black, you will never go back!