[IndrekR]

I am a long term multi-screen user (last 16 years or so), including portrait monitors for document reading (reminds me that some CRTs used to do funny things in portrait as their cooling was not made for this). I often have multiple datasheets, PCB layout, schematics and some code open at the same time. Lately I only use a single screen on the desk and think a good single 32" 4k monitor is quite close do ideal right now. With that resolution and screen space I really do not need any extra. Learning a few window manager keyboard shortcuts helps a lot as well. Just my personal experience, YMMV.

[PuffinBlue]

I agree. I mentioned it in another comment but you're right, 32 inch up to 40 inch is a good sweet spot with huge flexibility to do what you need.

You can basically use the central 3:2 section for most stuff unless you need to tile some windows wider, yet you still have huge vertical height to enjoy. It really is a great way to avoid multiple monitors, bezels and expense.