As in the title - add a toggle so that with no text selected, the word count is for the open note. With text selected, the word count is just for the selection.
+1! Some of my essays for school require a min/max word count. As someone that writes these essays in daily notes, of which likely have other text written in them, being able to see word count for selected text would be much helpful.
Maybe it’d be better if the word count for the entire note would still be there along with the count for selected text.