It is not a free or open-source font (like Google’s Roboto or Noto Sans). The rights to Helvetica are currently owned by Monotype Imaging Holdings (which acquired Linotype).
To answer your core query: Can you get Helvetica Neue LT Arabic Roman font free download extra quality? It is not a free or open-source font
Unlike standard Arabic fonts that lean heavily toward calligraphic or Naskh styles (which are cursive and decorative), Helvetica Neue LT Arabic adopts a neo-Kufic geometric approach. This means: It is not a free or open-source font
The stroke weights and x-heights are mathematically balanced to match Helvetica Neue Latin perfectly. Why "Free Downloads" Can Be Risky It is not a free or open-source font