Glad to read that your impression of Unorthodox pretty much mirrors my own. I watched the mini series a while back, right after it first came out on Netflix and was very much wondering what you would think of it should you ever get around to watching the show.

Also lots of thanks for the addidtional infos on Vor der Morgenröte.

As for actors sounding as if they were fluent in Yiddish: At least one member of the main cast actually is native speaker level fluent in real life, Jeff Wilbush, who portrays Moishe and whose biography reads like a male real life version of Esty's fictional one.

(Wilbusch talks a little bit about this in the rather watch-worthy making of that is also available on Netflix.)