I used to be all in on multi screen until 4k became a real option.

I invested in a 32" 4k monitor in 2016 and it's been a game changer.

I can look at full screen engineering drawings, I can open specifications documents, occasional code. With snapping I often have my screen split and can quickly move windows or programs around. The best part no bezels so I can make things fractions like 2/3 unlike normal screens where it would span a bezel.

I ended up putting my spare on the ceiling where I can monitor things and test configurations.

I have multi-monitor setups in my home office and at work, but I also find much greater focus when just on a laptop. I find some tasks, esp where I’m working with new technologies that I need a bunch of documentation up for, to benefit from the larger screens. It’s an ever evolving balance for me.

Fewer screens

I like 2 screens. It's not overwhelming but also allows me to do more things at once. I've had 4 screens at work at one point and it was way way too much. But after running 2 screens for years, at this point, I can't go back. I feel like I'm severely limited with just one if I need to do work things.

I've used a single screen for several years now. I used to keep messaging apps, etc.. on my laptop screen while I worked on an external monitor, but they just tended to distract me. Now I just use the single monitor and have nothing on the laptop screen (it's only open so I have access to the fingerprint reader)