Hello.

For anyone don't aware this type of escape sequences, open a xfce4-terminal(1)
window, with bash(1) running in it, then type:
        printf '\x1b[8;2;20000;t'

See https://invisible-island.net/xterm/ctlseqs/ctlseqs.html for more.

Apparently xfce4-terminal don't support many more annoying sequences, but
still supporting this 'resize window by characters' sequence. The example
above resizes the window to be 20000 characters wide; if the window manager
didn't protect against this insanely large resize request, it would be a pain
to manually resize it back.

In my opinion, terminal applications should never be allowed to change the
terminal window size. I don't want this "feature" at all.