Is this your own experience? I’ve personally rarely suffered for horizontal space, but very often for a bit more vertical space, especially with web-browsing now being so vertically cluttered.
I think many workflows are top-to-bottom in a way that benefits from more vertical space to keep it all in view - though development is probably exceptionally well-suited. My current setup (cribbed from an ex-colleague) is two vertical screens side-by-side, and I miss it whenever I’m working with a horizontal display.
But your avoidance of vertical splits likely comes for the same reasons I have a rotated screen - shrinking the vertical space in a buffer by any amount on a horizontal display quickly hits some kind of ergonomic limit where you just can’t see enough of the file at a time. I find that not only splits, but also console output, search results , etc. take up too much vertical space.
- The OS toolbar
- The browser tab and url bar
- often: A fixed website header
- sometimes: A fixed website footer
Sometimes I'm left with only ~600px of vertical content space. Which isn't much for reading content, much less for skimming it or getting an overview.
Regarding headers, in my browser, I have a built-in option to disable sticky headers. I don't remember any sticky footers.
You can have vertical tabs in Firefox without any plugins now.
Are website header and footer that common nowadays? I tend to think it is more a thing from the past nowadays.
Basically, upper part of this roll-up becomes a good "main-screen" and you can still have an auxillary lower part for extra stuff.