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I don't see the same effect on my 32 inch LG 4k IPS display.
Structure size?! I remember similar user observations with the Dell Ultrasharp UP2715K 10 years ago. At that time, there was a case where the panel was installed at a 180-degree angle, and a user also noticed this slight color shift, but in reverse.
 
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@tahoeroscoe

I mentioned it before in this thread but off axis I can see some light fall off and possible colour shift. It seems like off axis it becomes a bit darker/grayer with perhaps a mildly cooler tint.

If I sit at <25" away from the screen with my head exactly at the middle of the screen, I can see a bit of this towards the screen edges, since those edges will be sufficiently off-axis for this to be visible. It goes away when I move my head to the sides. However, in day to day mixed usage, I usually don't actually notice this unless I'm specifically looking for it... like today after your post.

I also agree it's not in all large sized matte screens. IIRC, I didn't see this in a 32" 4K Asus ProArt, but the 4K Asus had other much worse problems like poor text quality and awful backlight bleed.
 
Structure size?! I remember similar user observations with the Dell Ultrasharp UP2715K 10 years ago. At that time, there was a case where the panel was installed at a 180-degree angle, and a user also noticed this slight color shift, but in reverse.
I now realize you are referring to the light bleed on the edges of IPS panels. This is different, its a notable shift in color temperature on white backgrounds.

I sit at about 22” or so with eye level a couple inches below the top of the monitor, and the bottom half of the screen looks like its on night shift mode.
 
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