Almost all business applications have horizontal menus and ribbons that take up a decent percentage of a landscape monitor instead of utilising the “spare” screen space on the left or right, and a taskbar usually sits at the bottom or top of the screen eating up even more space (yes I know this can be changed but it’s not the default).
Documents are traditionally printed/read in portrait which is reflected on digital documents.
Programmers often rotate their screens to be portrait in order to see more of the code.
Most web pages rarely seem to make use of horizontal real estate, and scrolling is almost universally vertical. Even phones are utilised in portrait for the vast majority of time, and many web pages are designed for mobile first.
Beyond media consumption and production, it feels like the most commonly used workplace productivity apps are less useful in landscape mode. So why aren’t more office-based computer screens giant squares instead of horizontal rectangles?
A square monitor the same width as a widescreen is 77% larger overall = more expensive. (both in terms of materials and horsepower to run it)
There’s not enough benefit to justify the cost of stretching both dimensions; we use the width more than the height.
Tell that to my scrolling finger.
Rotate your wide monitor to be tall.
Genius.
Essentially if you want to use a monitor horizontally that’s fine, if you want to rotate it vertically that’s also fine, if you want to have equal horizontal and vertical real estate you’re out of your mind.