My Opple finally showed up and I took readings. The device seems very finicky and the readings change depending on the distance from the screen which makes it very hard to get accurate comparisons, and the app is absolute garbage, but I guess thats what you get for $40.
I was able to determine that my Win7 setup is right in the middle of the "No risk" green section, and my Win10 setup was in the middle of the yellow bar Low Risk section.
I have a spare monitor and video card that is the exact same brand as my win 7 setup. I had tried that on my Win10 setup before but I was using a DVI - HDMI cable, and my Win7 machine has a DVI to DVI cable, so I need to order a second DVI-DVI cable, and I can then replicate an identical setup as my Win 7 machine on my Win 10 machine and take measurement of both. If there is still flicker difference that will 100% confirm it is being introduced by the OS and not hardware
Is there a distance we should be holding this thing from the monitors? It seems to get more incorrect the farther you move away. I guess for like to like comparisons I will just use the same distance on both monitors, sitting on a soda can about 3 inches from the screen.