@Agame
Thanks for your report.
Me, as a reader, typically dislike footnotes inside the maintext, even if it short. It interrupts my reading "flow".
Annotations:
I'm not sure what's the correct term in English.
"Footnotes" are - in my typografical knowledge - defined about their position at the foot, the bottom of a printed page.
Annotations are positioned at the end of the book.
Everything which is positioned there cannot be a "footnote" anymore
