I am on the x86_64 flavor of Batocera (version 5.26), and the audio for video snaps is still not working, although the changelog says that this has been addressed.
I can hear other UI audio just fine (theme music, navigation sounds). I do have ‘enable video audio’ and also have ‘lower music when playing video’ selected. When I select a game that has video (with known working audio), the music volume lowers and I hear nothing from the video. I have even turned off ‘fromtend music’.
I know that there is not a problem with the videos, as the audio from them plays fine when using the videos in the built-in screensaver.