Those reflection images are clearly taken without precise control of environment/situation.
If taken in precisely controlled set up, location of reflection would be identical.
(actually GN's photo has more of lower edge of monitor visible)
And different colour tint also hints toward lack of precise control of camera settings, or even worse change in light source.
Hence only accurate thing which can be said from those, is that coating of neither is mirror like glossy/high on specular reflection.
And that macro shot definitely isn't out of focus.
That split of RGB sub pixels into lower and upper half simply wouldn't be visible through rough AR coating or in any significantly out of focus photo.
https://tftcentral.co.uk/articles/panel_technologies
GN's coating is certainly one of the roughest
https://www.prad.de/wp-content/uploads/2020/11/lg-27gn950-coating.png
https://www.prad.de/wp-content/uploads/2020/10/refcoat.jpg
https://www.prad.de/testberichte/test-lg-27gn950-b-4k-gaming-monitor-mit-nano-ips-technologie/3/
But that could have been well changed to lighter coating, like has been used many times in the past.
You can easily find many different AR filters/screen protectors available for laptops etc to buy as consumer.
So big companies have no doubt quite big selection of AR coatings with single or multiple layers available.
Even near zero reflectivity, but high transmittance&clarity coatings have been designed... But usually at way too high cost for consumer use.
Even less uncontrolled/unknown environment images don't prove much anything.
Though for 100% sure there's white painted wall behind the monitor and hence also other walls are very likely white giving lots of diffuse ambient light.
In which scenario that reflection actually fits quite well for semi-glossy/matte type coating.
Strong AR coatings minimize reflection from low intensity light sources very effectively.
....enlarged M28U which is BGR?
That Innolux panel is RGB.
But Sharp has 27" 2560x1440 BGR panel used in FI27Q-X.