If big enough and hi-res enough, it could be doable.
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.
I'm usually gaming (immersion is better in superwide) or I'm writing code (more real estate for uncollapsed visual studio windows) or browsing the web with netflix etc snapped to the side.
However I must note that superwide monitors are absolutely unusable in windows without PowerToys FancyZones functionality.
