I sometimes emphasize with italics, in Id this means I select the word and select the italic version of the font. Or at least, that is what I did a few times in the past. But these days, I have a character style that sets the character style to slanted. I know, I have one or two instances left in the text where I selected a different font and in one case even accidentally the italic version of a wrong font.
Is there a way I can find (any) text set in a specific font?
Sure. Use Find Text!
(You probably need to press the More Options button, for the very first time, to get the Find Formatting box.)