https://bugs.winehq.org/show_bug.cgi?id=50416
--- Comment #3 from j-r@online.de --- (In reply to Gijs Vermeulen from comment #2)
Game works fine here with wine-6.0-rc4 and FAudio-git. You might want to try with an updated FAudio. Your version, 20.04 is already quite old.
I cannot reproduce that result. Fails for me in the same way with current FAudio git (23470c393aca75c1deb18045dc0837bcdb5fdfe7) built both with and without gstreamer. Can you give me the commit and build options used?