What monitor to take for layout?

Question

Monitors

I want to buy a monitor for layout. What monitor settings are most important for this?
As a front-end developer, should I take a monitor with as large a diagonal as possible?
Should I get 4K?

It’s just that if resolution matters for layout, then I’ll take 4K. And if not, then I'll take myself 144Hz for games.
The budget is limited to 20000.

Answer 1

As a front-end developer, you do not need a monitor with a large diagonal and quality, because most users use mobile devices, tablets and resolutions of 1600x900, 1920x1080, 2048x1080, if it’s simple, then 16:9, 16:10, 19:10.

Answer 2

https://habr.com/en/post/508824/