Backend dev. I have an ultrawide (like two monitors in one).

Sometimes I need to test the full stack and need a lot (8+) terminals. I try to tile them all on a separate virtual desktop.

Most commonly though, I center my main application and can have two smaller, peripheral applications, one on each side.

When doing full stack, I need a browser, IDE and two terminals, tiled to give more space for the browser.

I have 2x27" screens. 1 is 1080 the other 1440.

For work, I would say it’s invaluable (software developer) to have say VSCode/VS running on local machine and say an RDP session open. Or to have open Jira issues on one screen or basically the actual program code and another screen with information/testing environments. It’s far better than finding the window you need all the time with alt-tab/the task bar.

Outside work, I generally have youtube on the 1080 screen while doing other things (games/personal development etc) on the 1440 screen.

As for a third monitor. I think there’s definitely valid use cases. But, I have a big desk but another 27" screen would just take up too much space. I am tempted in the future to replace the 1080 with something higher resolution though.

Web developer, couldn’t go without three monitors. Just three 1080p panels. Center monitor has the code editor, right has the browser, and left has the ticket or designs or the music player or Slack.

Not a developer, but I will always use 2 monitors when I can - using the secondary for Outlook: inbox on one side, calendar on the other. I will also swivel this for showing presentations/plans/documents to members of my team in face to face meetings, and will move Zoom windows to in webinars etc it whilst I get on with some actual work on the main monitor.

First screen for gaming and watching videos (landscape)

Second screen (portrait) Termal and reading documentation

My sister uses her second monitor maninly for Discord, but sometimes it’s art references or game guides.

I currently run 3 and am actively trying to figure out how to get more in my space.

I want my workstation to look like Neil Peart set it up.

I had two but switched to one 30 inch. I almost never looked at the other monitor. :)

Two 4k 32 inch monitors and docked laptop screen.
One monitor directly in front which holds code, research or video call.
One monitor to the right mounted vertically and angled towards me that holds a terminal, notes/email/jira or reference documentation for whatever I’m doing on the middle screen.
Laptop is to the left of the main screen and has slack open.

I’m big on tilling window managers, so I tend to do a lot of flipping between workspaces rather than apps, in my mental model. I’ve gotta use a Mac for work which sucks for tilling, but I can mostly make it work.

I am using only one monitor. It’s hard enough to position it to avoid glare from windows and overhead lamps, I cannot imagine doing it with two.

I also have 15 virtual desktops, so there’s that.

I’m a dev manager… I have 3x4k monitors. I watch server loads, I watch the build pipeline and watch the commit logs etc.

Overkill these days, but I’m also a gamer sooooo…

The old data I have from the industrial engineering work was that going from one to two monitors was a 40% productivity speed up, then from two to three was about a 5% speedup, then three to four was a productivity loss.

Those numbers were on general workloads, not for specialists. It was also with UI design from 20 years ago, and the way interfaces work now the numbers are likely different.

Personally, I immediately try to get a second monitor because having only one means I lose a lot of focus and mental time just swapping the active on screen windows, but a rarely seek out a third, though a third is nice for overflow tools (chat, docs, music) to have a third screen.

Not a dev, but I have 3 monitors on my rig that I use for work and play.

A 24" 1080p as my main monitor for stuff like games or Blender, a smaller 18 and a half inch 720p for secondary stuff like Firefox, Discord/TeamSpeak, and monitoring Cura when the 3d printer is going, and a 21" 1080p Wacom on a monitor arm. The Wacom is kinda outside my field of view unless I’m actively using it, so most of the time it just has a performance monitor running so I can see what’s hogging my resources. Having Spotify on there is nice though, the touchscreen/stylus makes running it quick and easy.

Not a software dev but tech is central to my life.

3 monitors for normal use

1 - personal streaming, video meetings

2 - remote business desktop access, main personal browsing window

3 - online chat presence window, personal email client, other

3 monitor gaming

3 monitors for racing simulators and any games that support it (which make sense)

Single monitor gaming

1 - Game related content on left 2 - Game window in center 3 - Game related social media or streaming

3 monitor home labbing

1 machine or app per monitor Triple monitor stare and compare windows GUI / CLI / Monitoring system interface

I didn’t realize how extensively I used my monitors until this exercise. Feel better about the spend and space tax related to it.

WFH is one laptop and 2 screens. Email is on Portrait mode screen. That one is also great for reviewing long-ass PDFs. It’s a FUCKING DELIGHT I tell you.