Question about LG 27ud58-B

IPS glows or backlight bleed - I don't know the difference (black is bright, as a layman - of course only as a subjective view, we leave technical measurements to the professionals ;) I decided to exchange the monitor.
Those who know nothing else - will have no problems with it. However, I expect from a monitor that the so-called contrast ratio is always given in relation to the absolute zero value of the number of lumens (brightness).

I just got the monitor recently. Runs very cleanly and smoothly even at 5ms. The display is pleasantly bright and offers pleasant contrasts. The number of settings means there is something for everyone. I can't complain about any of the problems you mentioned, even with 4k gaming - I'm really very satisfied with the product!