https://bugs.winehq.org/show_bug.cgi?id=47905
--- Comment #24 from m0rvj johnpgoodman@gmail.com --- Faithlife have confirmed that they are using EVR from media foundation for video playback. The video files seem to be H264/AVC with AAC audio. I see that a lot of work has been done on EVR from wine 5.13 onwards so I'm hoping that this might move us in the right direction.