I ran the game via Steam Proton and all works fine(even some audio bugs are fixed). But as you said the text are still blurred. I think its because game doesn't support some shitty screen resolutions.
Thank you. The topic may be tagged [SOLVED].
one thing you can try is importing fonts from your windows installation and the games font folder into linux and rebuilding font cache
Really thank you for your help but I won't doing this. The image now not blurred and I can read slightly blurred text in game. :-D
