>>> 4/3
1.3333333333333333
>>> 3/2
1.5
>>> 16/10
1.6
>>> 16/9
1.7777777777777777
I use an external portrait monitor for this reason, and it is quite luxurious. So much less scrolling.Also, if one is complaining about the dock, move it to the side.
Also if you often do multiple things at once.
I find most of the time, I'm looking at one or two long documents (web page, source code) and running shells on my landscape laptop monitor so the combo works perfectly for me.
However I must note that superwide monitors are absolutely unusable in windows without PowerToys FancyZones functionality.
On a Laptop it is different though.
Actually come to think of it, a perfect window manager would be something that allows for overlapping windows in the central region, and lets you have adjustable left/right regions as tiling window areas. Combined with something that can tell an application which region it is in, so it can adjust the interface (optionally) to fit that region's purpose and limitations.
More vertical space is a win in my book.