It's not communist AT ALL.
The game's setting is literally a failed commie state, and the game constantly deals with themes about the relation between the local people, culture and goverment with the ideology of communism
That Kurvitz guy - the game's lead designer and writer (writting about of the game's text) - literally admitted that he grew up with Lenin and that his ideals are inescapable in his country
He even owns a bust of Lenin, that originally belonged to a somewhat important Estonian communist writer
I am sorry, but Disco Elysium quite clearly is a game where communism
IS indeed at the core of the plot and experience