The Asus ProArt 32" I got had terrible backlight bleed. Like one of the worst I'd seen, even compared to super budget monitors. Also, it was only 4K, and I found the mediocre text quality just too annoying.
I am currently using a Huawei 3840x2560 3:2 28" monitor and it has very little backlight bleed. There is significant vignetting, and its matte coating amplifies that, but I've learned to accept it because the monitor was so much cheaper than the others I had considered, and the 164 ppi provides for much better (but not perfect) text. Plus the monitor is way prettier than the ProArts. I just don't understand why Asus continues to make them so ugly. While it's true most people forget about the look in actual usage after a while, even if the Asus and LG were exactly the same in terms of specs and reliability, I'd still consider spending hundreds more for the LG just for the aesthetics.
BTW, in the past I did not get an LG 5K or an Apple Studio Display in part because of the cost but mostly because I just find them too narrow. I wanted something wider, but I didn't want to spend the coin on the ugly Dell 6K which had a bunch of compatibility problems at the time too, and of course I wasn't going to spend the money on a Pro Display XDR. I looked into getting a used Pro Display XDR, but those were exceedingly rare, and reasonably priced ones were even more rare.
The LG 6K and Asus 6K scratch that itch for a wider screen, even though I don't need more height.