And outside of a few occupations that might actually require pixel-perfect colour, what does this matter? Is this like the audiophile world, where people argue about seemingly subjective things that no else cares about?
The customer interprets colours differently than you, the customer sees colours differently than you, and the customer is using a monitor that almost assuredly displays the colours differently than yours. And the world continues to turn.
CD quality audio is less than 1 megabit per second per channel, uncompressed. HDR (10 bits per component) 4K60fps 4:2:2 video is around 10Gbit per second of data.
Of course data bandwidth is only a small part of the problem of correctly reproducing an analog signal, but it gives you the orders of magnitude we're dealing with.
I currently use a cheap ASUS 4K display. It's more good enough for coding, but I wouldn't trust it for any sort of graphical work. The viewing angle is pretty bad, so depending on what part of the screen I'm looking at I see colors differently, and some gradients become more or less visible depending on which part of the screen they're on. Contrast is pretty bad, making even some videogame display poorly: depending on the location and time of day contrast seems always too high or too low.
You can buy a good sub $100 pair of earphones and a sub $50 DAAC and they'll be good enough to do 99% of any audiophile work you could ever want to do reliably. If you want to do serious graphics work without having to constantly adjust for your display you'll have to go for something a lot more expensive than an entry-level monitor.
I just unboxed the new monitor 2 days ago. The richer color was immediately noticeable, and when I looked at some random photos I took with my phone recently I was blown away by just how red and green and yellow/blue things were. Like a completely new realm of color.
It's one of those things that you can't appreciate until you experience it (same going from the original 72% to 99% sRGB).
The Dell was $450 for 4k, 2.5 years ago. The new LG was $800, but you can find 60fps P3 4k monitors for around $500 these days iirc. If you're on Hacker News you probably use your computer a lot. Unless you're running low on cash, upgrading to a great monitor is worth it.
I love them for my photo editing.
(This is on my 2019 Mac Pro)
I'm a color blind person and even I can see a color difference between cheap displays that I have at work and an old EIZO one that I bought years ago at home.
I can more accurately diffrentiate between different colors/shades on my EIZO panel.
Having a setup with multiple cheap monitors is imho really underrated for design and development. Moving something between screens and seeing clear contrast disappear, or see pleasing color choices turn ugly can be eye opening.
I am considering my next purchase on the basis of at least 5 years of service and that is a long time to be looking at something "not quite right".
...which bought Korean manufacturer Hydis (was originally part of SK Hynix), so you'll often see panels marked "BOE-Hydis".
There's a Chinese panel manufacturer called BOE that makes products competitive with some of the lower-end Samsung / LG panels.
I got one 15.6" 2160p external display with a BOE panel that offers 100% sRGB coverage. I can see a huge difference compared to my Dell Latitude laptop display.
Now if anyone can find a source of 55" 4K OLED panels, that would be the one ultimate display. Combine it with a VBO driver board and it becomes better than any smart TVs.