It’s more trying to indicate the tongue placement - an N sounds different depending on whether you place it at the front of the tongue or back of the tongue. Back of the tongue is much more nasal, which is frequently associated with French accents, and could sound almost like an “ng” sound to someone less familiar with nasal pronunciations.
Depending on the accent, it may also be closer to bong jewr
What? There is no hard g sound afaik.
It’s more trying to indicate the tongue placement - an N sounds different depending on whether you place it at the front of the tongue or back of the tongue. Back of the tongue is much more nasal, which is frequently associated with French accents, and could sound almost like an “ng” sound to someone less familiar with nasal pronunciations.