First I must say that this latest appimage, '12.1' is fantastic. My only issue is with youtube ofc. It sends audio to my speakers insted of my headphones, and the headphones are set to be used by the system. Also there's no video(even though progress happened and now fullscreen works). Which gstreamer dependencies am I supposed to have?
@bluedragon77, you need GStreamer 1.x, at least good and bad plugins and perhaps PA plugin too, if you are using it.