Seems like it's indeed tougher situation for non-EU languages, in general. Publishing in EU languages has no limits. In non-EU, it's only for the books for which the non-EU language is the language of the original. Basically, getting "Art of War" in English is fine. In Chinese - fine. In Vietnamese or Russian - not really. For these cases a case-per-case basis is implemented. On top of that is a ban of books written by Russian Federation citizens.

Yet, you can still publish "Anna Karenina" in Russian language in Ukraine, for example, for it was written prior to 1991, and it's a language of the original.

https://news-obozrevatel-com.translate.goog/ukr/economics/economy/v-ukraini-zaboronili-rosijski-knigi-rishennya-verhovnoi-radi.htm?_x_tr_sl=auto&_x_tr_tl=en&_x_tr_hl=uk&_x_tr_pto=wapp