Earlier quoted context omitted.
They are a bit out of fashion these days. The main use-case was multiplexing terminals and, after tmux provided a solution that was usable by normal users, it seduced people away. Also, mouse-first tiling was introduced on Windows so nowadays it is almost universal to have a degree of tiling. They are nice for terminals and browsing properly-written web pages but for anything with an aspect ratio or a fixed size they…
> The main use-case was multiplexing terminals and, after tmux provided a solution that was usable by normal users, it seduced people away. Are you sure about this history? I'd always heard that GNU Screen had been popular for a while before tmux, and from double checking, Screen dates back to 1987, the same year that Windows 2.0 came out. tmux didn't come for another two decades.
It makes sense too because at that point most terminals were still physical with fixed dimensions. Most applications didn't handle terminal resizing yet. Especially on the fly.