seems neat, but: how often do you launch a program that defaults to having a teeny-tiny window, like shown here?
I probably don’t want a calculator to be full screen, even a terminal full height might make sense but full width almost never does.
I disagree; things like atop can make good use of a full width (and full height) terminal, and log lines (for instance from dmesg or journalctl) are often long enough that a full width terminal makes reading them more comfortable.