For writing, I have a 90° angled 27" 16:9 monitor at 1080x1920. It's absolutely unusable for programming since it barely fits 80 characters at a usable scale, but it's like having a giant page in front of me when using a word processor/text editor.
In the office I have two 1080x1920 panels, which can each display two columns of code with room to spare. I use the X11 6x13 “fixed” font, and emacs with fringes but without scrollbars, so each column is a few more than 80 characters wide.
At home I have two 1200x1920 panels, a bit more horizontal breathing room, but my code is still less than 80 wide :-)
Soft-wrapped code tends to be pretty difficult to read though. Certainly much more difficult than wrapped prose. Personally I prefer horizontal scrolling over wrapping code pretty much always (at least on a mac where horizontal scrolling is easy).
Xcode used to be really good at softwrapping code. It was so useful with the assistant editor on a laptop screen. It got worse at some point around Xcode 8 or 9, which was a shame.
Usually word processing and typesetting have word-wrap enabled. This is undesirable in a program. The 9:16 screen may still be useful for programming though, because it's nice to have some documentation out on another screen.
