They sold the news platform, it looks like a step towards having their company less associated with Kremlin content moderation:

https://www.reuters.com/technology/yandex-sells-news-content...

They do business in other countries and for that it is best for the business to appear as neutral as possible. We don't know how much they fiddle with the search results and ranking but this still looks quite neutral to me: https://yandex.com/search/?text=russo+ukrainian+war