What setup to choose for the workplace?

Question

Iron

Good afternoon, help me decide on a choice, otherwise I got something to read and finally got stuck.
It is necessary to decide on the configuration of two monitors for comfortable web development at home in slippers. Which option to choose?
1. two 4k, 27-inch, 16:9
2. two 2k, 27-inch, 21:9
3. main 4k under the nose 16:9, additional 2k 21:9
4. main 4k under the nose and additional 2k in portrait orientation
Bye I didn’t delve into the essence of the issue, everything was quite unambiguous, I sat and googled and now I can’t put my thoughts in order which option is better.
One monitor, alas, does not fit, we periodically communicate in the conf on the second, there is a picture from it and settings.
Perhaps your experience will suggest a more rational option, thanks in advance. Also in mind with the update of the PC config, I would listen to what kind of video it’s all then to pull

Answer 1

Two 4k monitors on a bracket like this and twist, twist them as you like. Ultra wide not very useful for programming,

Answer 2

Personally, it annoys me when for some reason you want to throw a window to another screen and there is a different resolution and the window is already arranged differently.
I love when two identical monitors.
Plus, different monitors, especially in different orientations, may have to be calibrated to each other in color.

Answer 3