I wish there were more options for ratios in the stand-alone display market. Rumor has it, Microsoft will be creating a line of Surface displays. [2]
In my opinion 16:9 is unappealing for productive work.
[1] https://en.wikipedia.org/wiki/Microsoft_Surface#Model_compar...
[2] https://www.theverge.com/2018/11/29/18117584/microsoft-surfa...
Maybe it is becouse widescreens have more inches diagonaly for the same area as 4:3 that there was a push for consumer TVs with widescreen?
Think about it: when you're writing code or working in a shell or reviewing a configuration file or working on a word document you'll probably use vertical space more than horizontal space.
16:9
16:10
16:10.66 (almost 3:2)
16:12 (4:3)
I'm sure you can tell the difference between 16:12 (old TV) and 16:9 (widescreen).
On linux I like using a 4k display at 100%. I don't really care about window chrome, icons, etc. I care about text and mainly use a text editor, terminal and browser. They all allow me to set the text size. This way I get the best of both worlds: unobtrusive window chrome and legible text. This works great on a 24" display.
However, keep in mind that the 16:9 aspect ratio is better suited for movie watching and somehow the whole industry (except for Apple, and Dell also seems to have picked that up in its latest XPS line) uses that, even in professional settings. 16:10 is way better. 1920x1200 displays do exist and I recommend that. Used ones are a bit more expensive than used 1920x1080.
I'll forever miss the 1400x1050 display that I had on my ThinkPad T42. It was awesome for displaying content vertically (think code and/or documents).