I wanted to rejoice. Then I checked and saw on Linux the DLCs are updated for English language only. As a player with a Russian-language install, I'm less than happy.
The English offline installer should be universal for all available languages. Have you tried using it with the Russian version of the game?
Thank you very much for this valuable hint!
I tried it immediately and it actually worked (here: German base game).
Only thing I noticed that some translations in the parts description don't work correctly and are shown in English. (Funny, so no problem for me.)