I just checked the Reddit thread and the OP took it down in protest of Reddit’s API changes.

That’s a nice find, thank you :)

Are the tracks incorrect as in the first track should be English but is the French track, or track one is labelled as English but is actually French?

If they’re labelled correctly, your media player should be able to select your chosen language from the options, whichever order they’re in. I think Plex does it.

If they’re incorrectly labelled, there are tools that can fix them, but it’s been years since I last used one. I think MakeMKV did it, but it was gui from what I remember.

Well, they should. Whether you do it or not is another question ;)

Yes, but temp folders get cleaned. You have to manually remove pdfs from your downloads folder