Re: master 57d2f24: * lisp/frame.el (make-frame-on-monitor): New command. (Bug#34516)

[Juri Linkov]

> In any case, I think using x-parse-geometry is not necessary. The
> workarea already contains the relevant coördinates, and you can just
> pass (fullscreen . maximized) to get the right size. Sample patch
> below (which Iʼve tested only on macOS, not under X).

We should not use (fullscreen . maximized) because this is not what
make-frame does by default.  I see that in 'emacs -Q', 'C-x 5 2' makes
a new frame with text sizes 80x35 in the center of the current monitor.

We should do the same also in case when a new frame is created on
another monitor.  So maybe just omit the attributes 'width' and
'height', without using 'fullscreen'.  Any other attributes are
a matter of personal customization.