So yeah, it seems like my G9Q panel is tolerable — not perfect, but definitely not bad either.
I could play the panel lottery — maybe I’d get a slightly better one right away, or maybe I’d end up with something worse.
No real point in chasing a G9N, since it looks like those have the same issues anyway.
Also, neither my wife nor my sister could see any problems on my screen at all, which probably means there’s nothing truly noticeable or critical going on.
By the way, the photo was taken with a professional camera and properly calibrated settings, so it accurately shows how the screen actually looks in real life.