Whole wide gamut marketing is nowadays half BS.
If you're photoshopping for serious printing, you would want also AdobeRGB coverage.
In comparison DCI-P3 lacks in greens and especially that cyan, which is part of CMYK print process.
(AdobeRGB was designed precisely to increase gamut over sRGB in that part)
LG used to be maker of the largest gamut panels.
But nowadays they consistently stumble and plant face to dirt when trying to get over DCI-P3 with their Nano hype panels being behind old GB-Led backlight in gamut size.
Though otherwise that 27" Nano-IPS has modern response times for gaming and is well balanced... In 3840x2160 resolution!
(2560x1440 resolution Nano-IPS panel has contrast from 15 years ago)
AU Optronics makes the widest and also AdobeRGB gamut covering panels.
But if 27" is the size limit I don't think they have yet such modern response times 4K panel out yet or at least in released product.
M270QAN02.6 is such panel in their roadmap.
Though we're waiting for modern response time panel monitors also in 32" size.
Last year CES announced 32" monitors have mediocre response times from five years ago.
Though for non-"spinal reflex shooter" gaming they should do fine.
Innolux has 28" 4K panel like in Gigabyte M28U, but gamut of those is even smaller than in LG's Nano-IPS being goood really only for sRGB image editing.
(same for 32" version in M32U)
