Hello,
I've noticed the fsType value in the OS/2 table of OTF fonts is not honored by Indesign nor Illustrator.

I've set the value of fsType to 0x0102 and this should prevent subsetting and embedding.
However, Indesign exports to pdf, embedding and subsetting these fonts. Worst, it gives no warning the embedding/subsetting isn't allowed for the current font.

I've also tried to package my document and I see the fonts were packaged, while they shouldn't :/
for info, I had flushed any font cache to be sure the font files are the good ones.
Mac Os. 10.14.6
Indesign 15.0.2