From 2014 to 2021, the status of the Russian language in Ukraine has degraded from regional to actually banned in the public space. Actually, this was one of the main reasons for the armed separatist conflict in Ukraine, it is strange that you do not know this. It is interesting that Russian-speaking residents of Donbass often speak Ukrainian language better, because they study the literary version at school than residents of Western Ukraine with their native surzhik. I am sure that demilitarization and denazification during the current operation will benefit them, ennoble and raise their level of civilization to an acceptable level in a decent society.