https://bugs.winehq.org/show_bug.cgi?id=48766
--- Comment #19 from mo78@abv.bg --- I use isolated prefix with wine downloaded from here: https://github.com/Kron4ek/Wine-Builds/releases
I can easily use system Wine though via export option. You're right, there isn't winegstreamer.dll.so in lib folder. Now I'll make a log with my system Wine, installed from the package manager. There is winegstreamer.dll.so, I already checked.