You can’t compare, but the YAMKE field has a side-by-side editing mode (with live preview).
Kirby YAKME - yet another kirby markdown editor
Like I said; you can not compare a WYWIWYG-preview with the Editor Field I mention here, but maybe it can come in handy for some of us.
https://github.com/1n3JgKl9pQ6cUMrW/Kirby-YAKME/raw/master/kirby_yakme-capture.gif