You can theoretically run the other program with Proton as well. Just if that helps get your other software up and running. =)

I wondered the same thing. After searching a little, I found these two articles (multiple since I’m unsure and so wanted to cite my sources):

https://teamjapanese.com/japanese-punctuation/#niju-kagi-kakko-二重鉤括弧-double-inverted-commas

https://www.fluentu.com/blog/japanese/japanese-punctuation/#toc_3

Both of which state that 『』are called 二重鉤括弧(にじゅうかぎかっこ) literally double hook brackets. And the normal ones 「」are called 鉤括弧(かぎかっこ) literally hook brackets.

They also state that 『』are typically used for quotes inside of other quotes.

Additionally, the Wikipedia article on Japanese typographical symbols says that they’re used for titles. (Under brackets and quotation marks, second item)

https://en.wikipedia.org/wiki/List_of_Japanese_typographic_symbols

Hope this helps! I learned a lot doing the research for it. The rest of the first two articles is really interesting to read too.

This is typically done through what are called “forced subtitles”. I’m not sure if you have any specific question like how to enable forced subtitles, or how to get forced subtitles. But hopefully if nothing else having the keyword helps.