No. I was just curious, if Illustrator behaves similar as Word. I’ve noticed that older Word versions on PC doesn’t recognize the font in a Word document created on Mac, because the ID4 FontName includes “Regular” (And shows up in the menu as “Family Name Regular”). If ID4 has no “Regular”, it works. Maybe Illustrator handles it the same way?
Discussed here: VariableFonts id4 - #3 by philgarnham