I'm not a SWE, and when I write code anymore it's just as a hobby. For work I'm in a business function and my 32" 4k monitor has been setup with 5-6 persistent windows since covid.
1. Center top: videoconferencing space. Approximately 1/3 width and 1/2 height of screen is used for Zoom/Meet/Teams. 2. Top left: chat (Slack now, previously Teams or Google Chat). Half height and 1/4 width. 3. Bottom left: Calendar (Zoom now, Google previously). Half height and 1/4 width. 4. Bottom center: primary browser window with dozens of tabs open, also used for email & calendar. 1/2 width and 1/2 height. 5. bottom right: Claude 6. Top right: working document(s). 1/3 width and 3/4 height. When I finish something, I'll close this, or occasionally move to a tab group in my primary browser.
This method of organization works pretty well and allows me to 1) get work done, 2) monitor comms, and 3) not miss meetings. If I need to focus and not allow others to disturb me, I'll just minimize the Slack & primary browser windows and make the working doc browser window(s) larger.
This is all plugged into a Macbook (14") that sits on my desk. The laptop screen contains a single browser window signed into a personal profile, and is used exclusively for non-work stuff -- mostly email.