Streaming, Converting wizards: Burning/hardcoding subtitles into the video
I am not sure whether it is a bug report or a feature request. https://forum.videolan.org/viewtopic.php?f=14&t=121738#p410302 It is possible to use the Stream... wizard, to "[v] Activate Transcoding", to [select]/[create]/[edit] appropriate transcoding profile with ticked "[v] Subtitles" and "[v] Overlay subtitles on the video", to edit the "Generated stream output string" and delete the "scodec=" option in the chain. It is not possible to use Convert/Save... wizard for this purpose at all.
Perhaps the "Overlay subtitles" for the standalone "soverlay" option could be included in the drop-down menu in the Subtitles tab as a default option there.