You can get more done with more screen space across multiple monitors, rather than a single high-resolution display.

Should you buy a 1080p or 4K monitor for your home office? This is a question you’ll inevitably face, especially if you’ve been trying to work off of a single monitor or a cramped laptop display at home. If you have the budget and space to add a second or third monitor, you then have the choice between buying the ubiquitous 1080p resolution (1920×1080 pixels), or 4K (3840×2160 pixels), the higher resolution that’s already common on TVs and some high-end laptops.
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https://www.pcworld.com/article/3540451/1080p-vs-4k-which-is-better-for-your-work-from-home-setup.html