Explain the problem as you see it
Unfortunately, due to the difficult situation in the world. Many applications remove Russification from their applications. There are practically no analogues on the Russian market and there is a small chance that they will appear. A very large number of people outside of Russia use software in Russian, these are local difficulties in understanding complex terms even in the native language outside of Russia.
Why is this a problem for you?
Working in your native language is always more intuitive and leads to a greater desire to use applications. Especially when the application is not the simplest in functionality. And has a huge number of functions that even in English are not always clear how best and correctly to use.
Suggest a solution
Russify the application) And of course create more guides, since your application has huge functionality and I would like to convey it to more people so that you can develop.