> I think most people lack horizontal space more than vertical.

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.

Yeah, it's my own experience. I'm so used to horizontal splits in the terminal and editor. I can't imagine using vertical splits for code.

I don’t exclusively use vertical splits - often I opt for a four-corner split if I need more than 2 panes at a time.

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.