In his article, Julio said,
External display support. TidBITS publisher Adam Engst recently encouraged me to try dual-display computing via an iMac paired with an external monitor. Such a setup isn’t new (iMacs have supported the feature for years), but it has been a revelation for me, and I may not be able to go back to a single screen again.
I connected three Apple 12" RGB monitors on my Mac IIci in the late 20th century. This worked fine, especially for multiple remote Xwindow sessions to VMS and Unix systems. But I had to quit this, not only because someone wanted their display and adapter card back, but because it exceeded the load capacity of the office furniture.
As to usefulness today of three displays, consider a Zoom meeting with full screen gallery display. and full screen active speaker/shared content display. The third screen is vital to preparing shared items, such as a keynote presentation, without interrupting full participation in the ongoing meeting displays. Or, for example, the same scenario except the third screen displays local text which is being referenced.
My intel mini easily supports my two main Dell screens and the third screen is just a repurposed smaller screen from another system. I’ll keep this mini as long as I can.
As to “It’s clunky to balance an external webcam atop my display.”, better webcams have folding mounts and even a tripod thread insert – no balancing required. My latest webcam, the Anker PowerConf D300, has the best external webcam image I have ever found. The supplied ankerWork software does not zoom in as close as possible, so I use Webcam Settings.app. I gave Anker my feedback and hope to see an improved version of ankerWork.app.