No support to the fact that she resigned in protest. Please don't spread this whitewashing of Yandex. Many Russian executives stepped down so not to be hit by sanctions. She was already scheduled to be replaced by Khudaverdyan and then invasion started.
"On Sunday, an independent Russian media outlet called The Bell, which focuses on high-tech and startups, posted a screen capture of a message Bunina allegedly posted on an internal company forum. According to the post, whose veracity could not be verified, Bunina wrote: “I will not return: I cannot work in a country that is at war with its neighbors.”" - from Haaretz