Comment by seper8
I have a 2x 4k ultrawide. The Samsung Oddysey 55(?)inch variant.
Not only is it very bright and legible, the fact that the screen takes up my field of view helps me focus.
And I connect it to my MacBook using two seperate HDMI cables, so it's essentially two seperate monitors without bezels. I think I'll probably keep this monitor for a decade or so: any higher DPI and it doesn't make any difference because you have to size up the text. Any brighter and my eyes will burn out of their sockets.
The top end Samsung Odyssey monitors definitely near impossible to beat with any other choice for folks that prefer curved displays. For folks that like flat, something like the PG32UQX is probably one of the better equivalents since the flat Odyssey monitors always assume "I want the highest end version" = "I want the curved version".
For those who don't care about maximum brightness quite as much, the new OLEDs are getting quite good for both curved and flat (though the lifespan issue isn't quite as fully solved as the manufacturers would like to have you believe, it's significantly better).
> any higher DPI and it doesn't make any difference because you have to size up the text.
I get irked (to perhaps irrational levels) when a monitor's DPI (really PPI) is phrased in terms of how big text appears. Text is already sized in physically based units (even when CSS lies and says "px" it's really fractions of an inch, similar to pt), DPI is how sharp/clear the text ends up looking for the given font size.
A monitor with twice the DPI should give you clearer text, not smaller text.