If a font is called for, and it doesn't exist in any of the standard locations, what happens
I don't know about other applications but every time I open Power Point or Keynote, to look at things that have been sent to me, I get a dialogue box cautioning that a couple of fonts are missing. It's never made any difference that I could see, so I assume a substitution was made.
It's been a while but it seems to me that it was always the same fonts.
ryck