Russia filed a complaint to European Court of Human Rights against Ukraine, accusing it of discrimination of Russian-speaking population, war crimes in Donbass etc. And this is great news, in many ways. Firstly, because this way Russia confirms it respects ECHR jurisdiction. Secondly, because an in-depth evidence-based approach is what the conflict absolutely needs, and many of the Russian claims will actually reveal facts inconvenient for both sides.

https://novayagazeta.ru/articles/2021/07/22/rossiia-obratilas-v-espch-s-zhaloboi-na-ukrainu-obviniv-ee-v-gibeli-mirnogo-naseleniia-i-zhestokom-obrashchenii-s-liudmi