That is a fine film. The protagonists are, however, not ordinary citizens.
I'd highly recommend also watching Christian Petzold's Barbara [1]. It's an equally fine film, but it has a different focus.
Here, the heroine is an ordinary physician (played by Nina Hoss), banished from Berlin to some province. The film captures the nightmare for the ordinary citizen of authoritarian police states, including the depressing fact that nearly anyone in your life could be informing on you. We also see how cooperating with the state authorities can get you privileges, such as better housing.
[1]: https://www.imdb.com/title/tt2178941/?ref_=fn_al_tt_1
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p.s.: this review is quite good. Almost felt like quoting it in full, as it is rather topical to the thread as well:
https://www.imdb.com/review/rw2764284/