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If it is not too much to ask, what is the panel model of the display (non frc 8 bit or 6 bit?). Perhaps hwinfo, aida64, or similar programs would reveal that.
Products to try or avoid? PWM Flicker and Temporal Dithering Testing
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This is my panel version for legion 7i 2023 16IRX8H
https://www.panelook.com/modeldetail.php?id=59368
BOE NE160QDM-NZ3 or BOEhydis NE160QDM-NZ3
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photon78s I don't know what mine is. I'm so scared to try the legion 
I am still in a flareup idk why!! I'm going to get a upper cervical adjustment with the atlas orthogonal technique soon and see if it helps. My C1 and c3/4 seem to have alot of instability, doesn't hold long. Eyes are very blurry/slight double vision at the moment.
So is the Intel UHD graphics better to use on quiet mode then?
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I personally don't feel a difference between quiet mode and balanced running on iGPU or discrete. Looks like Dadab12 prefers iGPU and quiet mode. I have found that ditherig works or at least has an visual effect on the iGPU of my 7i using blooey's banding test chart. Disabling all dithering in ditherig produces noticeable light red and greenish artifacts. Enabling temporal dithering from ditherig produces naked eye visible waves moving across the 7 to 12 bit bands (maybe even 6 bit band hard to see). This effect is visible only in 60hz mode.
I pray everything goes well with your procedure!
photon78s it's so frustrating because I won't know what works if I don't try but then if I flare up I'll feel even worse than I do now for weeks to months since it takes awhile to recover. I think that hp omen 27q true 8 bit that I have may be a safer option so that's what I should test soon now that it's after Easter lol. Just gotta decide between my precision 7820 xeon 4216 /rtx 5000, 13600k/Intel arc a770, or 10900kf/rtx 4000. I guess to is decide on what OS to run. I'm leaning towards win7 to start and then 1809 maybe after?
I did get a rtx 4090 MSI suprim X recently for my crypto mining rig so I'll have that to test
...eventually... Lol
The legion unsure if that's a good option right now.
I appreciate that brother 
I can tell when my neck is out of alignment because my vision will be more blurry as well as other symptoms. Good tell sign visually is looking in a mirror and noticing if one shoulder is lower than the other. I guess too if one leg is longer than the other. Do you have neck issues btw?
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photon78s Not sure what exact panel, but I know that it's a 6bit panel (which by default, is temporally dithered to 8bit entirely by the GPU, and not by the panel itself, quite uniquely)
This means that even this "FRC" can be entirely disabled with ditherig.exe, which will reveal the panel's true 6bit form. Suddenly banding will appear everywhere, even on photo wallpapers, with RGB precision cut in half.
Which makes it very clear that it is a 6bit panel and can actually be used in "true 6bit" if dithering is disabled
BTW just as a disclaimer I do suspect the display does have some level of PWM — but for whatever reason it does not seem to hurt text readability, focus, or productivity for me at all despite me usually having problems with pretty much all other PWM on TVs, phones, monitors, and lightbulbs.
It was already generally good for the 11 years I've owned it, and it's only became even better after finally realizing I could disable dithering — since now, not even long lines of text shimmer at all!
May not the best choice for someone like jordan though with a lot more serious symptoms from PWM.
But for me, it checks all the boxes for being able to see a ton on the screen at once, think productively, stay focused, not get tired, use the computer fast without getting motion sick at all — it just totally works for me for some reason.
Maybe it's due to some different style of scanning used for the PWM instead of the whole screen flashing at the same time? Or maybe it just has a much more comfortable backlight spectrum? No idea, but it's dither-free — and if it works, it works.
My man, I have Ehlers Danlos, so I know neck instability.
I have so many weird eye symptoms. Extreme visual snow, double vision that comes and goes, vision that at times is much worse than others.
It's a terrible predicament to be in.. I also have more health problems and I can barely think clearly at this point. I have dementia like symptoms.
Anyways, I hope you get your spine better. I think i'm a lost cause lol. And i'm in so much agony trying to figure out what I should do with this laptop, return it or not. It also underperforms below average and the battery life even on the intergrated graphics and 60hz is sub par. And the Wi-Fi sucks. I do wonder if I should try to exchange it for another legion, perhaps it's a laptop/panel lottery.
Also, can I fresh install windows without being fucked by the return policy/warranty?
What other laptops are available that are strong enough? I don't want to be relegated to an old laptop.
So you like it better than your Macbooks? What is the reason you are still trying to get Macbooks to work for you? just the MacOS or the ecosystem?
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To emphasize, it should not at all affect the laptop's warranty. The warranty info on the ditherig site only means that the guy who wrote this software program does not offer warranty for his software.
About other "strong enough" laptops, check out this discussion with the Asus Strix laptops:
Some more curiosities:
Unlike my PCs, both the mac mini and the 13 inch MBP Touch Bar I've tested emit a strong wireless emf signal upon boot up and then the signal stops. I don't know how to disable this. It is not controllable from within Mac OS with the standard wifi or bluetooth settings.
The Ra color rendering index value is higher on the 7i than on the MBP TB (87.7 versus 71.5) as measured with spectrometer. Both have similar spectrums as expected for WLED backlight displays that are a far cry from natural sunlight spectrum.
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So I setup two crypto mining PCs both 7950x cpus BUT first PC is a asus x670e crosshair motherboard and second PC is a b650m edge MSI itx motherboard They are meant to be running headless (no screen) BUT when I enter bios and configure CPU settings and also short time booted in HiveOS(Linux mining OS) The x670e Asus makes me feel AWFUL.. the MSI b650m itx one didn't bother me like the asus. I now am a strong believer in motherboards causing issues... Same HDMI cord too and this was using the motherboards HDMI port with Ryzen 7950x iGPU. Feeling not so good right now. I've been tinkering with them the last 3 days mostly msi and just earlier I tweaked the asus more and just is BAD. I felt this a little the last few days when I used it but this time I used it longer and yikes not good..
It's basically the same feeling I got with the iPhone 11
Edit: this was connected to my old Samsung TV that I normally don't use
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So frustrating to add now motherboards as eyestrain contributor. You would think that boards supporting the same chip should be more consistent. At least you don't have to config those rigs often. Set it and forget it. Next time maybe you could run the iGPU output through a hdmi converter and OBS to get rid of the dithering on whatever computer you find most comfortable.
Don't laugh, I'm being serious unless you have food allergy.
https://www.quora.com/Is-chicken-liver-good-for-the-eyes
https://www.livescience.com/1021-scientists-eye-benefits-spinach.html
I need to find a good recipe.
Here is the spectrum for the 7i
https://ibb.co/7z6CvRv
and the "good" M2 MBP Touch Bar:
https://ibb.co/TKWmjyQ
Both are spikey but the red seems unbalanced on the Mac. Night light off and default settings on 7i. Mac is running sRGB color profile with true tone and night light off. Sunlight is a gentle curve with no big spikes.
Returned the pro 7i. bittersweet feeling. It’s such a quality laptop but after being without a a pc for a month now realizing how much it fucks with my mental and physical state just looking at a screen for a short while. it’s so sad.
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this is probably because you're running the sRGB profile, that is not the laptop's native color gamut.
P3 displays have the ability to create oversaturated reds (and blues) by design, running it in "sRGB mode" will just "stretch" normal sRGB red all the way out to maximum P3 red.
another thing that may affect this is panel variation, my first TB M2 had the classic "screen lottery greenish-Yellow Tint" (also often seen on iPhones) but my new one doesn't — it now has a very slight "reddish" tint instead which is nice because a lot of my other "most usable MacBooks" have a reddish tint!
each one actually had an entirely different color temperature to my eyes IMO. of course true tone was off on both
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13 inch M2 MacBook Pro Touch Bar testing:
I measure the same red peaking spectrum when on Color LCD profile. I measure on pure white like RGB (255, 255, 255). Not a concern for me. Being using this base model machine for the last few days and so far it feels comfortable and dare I say more comfortable than the 7i screen at 240 hz refresh rate even with all the dithering removal workarounds enabled.
So I used an industrial/scientific grade Thorlabs PDA100A2 photodetector and I see the threshold between almost flat signal to high frequency PWM or PWM like fluctuations at 63 to 64% brightness as adjusted using BetterDisplay display. Switching between 1280 and 1440 Rez didn't affect these readings.
What is strange is the notebookcheck reported 56% brightness threshold for PWM. Switching from 56% to 57% brightness sometimes but not always results in suddenly less high frequency peaks in the signal but it's not a consistent occurrence. Sometimes going from 57% to 58% higher brightness would increased not decrease PWM-like fluctuations. What is consistent on my cheap oscilloscope is the 63% to 64% brightness threshold change. Need to recover budget wise then someday will upgrade my oscilloscope. I use 20dB gain setting on the photodetector to account for lower backlight and the photodetector noise is still low as stated in the manual at 219 μV RMS and the bandwidth is 800kHz.
My general impression using this pro photodetector is that the Opple4 is still giving a roughly useful waveform and not just pure low light noise in my previous testing at 50% brightness. The Thorlabs device is awesome and should be. It cost almost as much as a used laptop!