I think it would be incredibly useful to provide your machine's installed font list as an option when trying to create a point symbol callout for labels in Pro.
Currently, when I create a point symbol callout label in Pro (2.3.3) and select "More Point Symbols", I'm provided a gallery of point symbols for the project. I think it would be beneficial to have the option to browse your installed fonts in order to have the ability to select a specific character from an installed font.
I don't really want to have to create a point symbol just to use it as a callout in a label.
Similarly, what if I want multiple characters in my callout, I'd like to be able to add characters to the callout as needed.