For which countries/languages ​​should the Russian localization of the application be used by default?

Question

Internationalization and localization

There is a Russian-language Windows application intended mainly for the former USSR. Added English localization for a few foreign users. The application does not have an installer and a language selection dialog, it just starts. For which languages ​​should Russian localization be enabled? Now the list includes Russian 1049, Ukrainian 1058, Belarusian 1059, Tatar 1092, Kazakh 1087 and Kyrgyz 1088.

Answer 1

If the application is free, turn on Russian everywhere, if it is paid, do the language selection dialog.