Vertical screen real estate.

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.

Consider rotating your monitor to vertical instead. On the desktop, I always have one or both of my monitors vertical.

Can't do that on the laptop!

I'm not so sure, I recently calculated the following:

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).

It's a bigger difference than it sounds, because the space taken by the taskbar and window chrome are fixed. So the extra pixels go directly to your vertical scroll area.

I also like hiding the dock and the menu bar on macos.

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.