https://bugs.winehq.org/show_bug.cgi?id=44826
--- Comment #35 from Nikolay Sivov bunglehead@gmail.com --- I tested some more, and for Noto Sans Arabic I get same results as on windows for presentation form ligature - it's not handled, everything is left unshaped. For first issue you mentioned I was unable to reproduce both with Noto Sans and Arial, it shows up with correct ligature for me. So in order to reproduce I'll definitely need to know exact font that was used.