Now, "голосование на пеньках" (voting on stomps) is a mockery of Putin's constitution referendum by opposition. When searching this phrase in Google the front page is again Putin controlled media: tass, rbc, kommersant, rg.
Yandex apart from the aforementioned web-sites has US State Department / Soros funded meduza and svoboda.org, liberal (in American sense) tjournal, Deutsche Welle.
It seems Yandex gives preference to the most relevant sites when Google decides what's good ("credible") for you.
[1]: https://yandex.ru/search/?text=%D0%B3%D0%BE%D0%BB%D0%BE%D1%8...
It'd be weird for Google to bury bad think only for non-American IP addresses but allow it for Americans if it was on some woke crusade for the benefit of the US government. Now, I'm not sure why it's removed from your results, but my point is that what you cited as a piece of evidence for malign intent on Google's part isn't actually supporting evidence.
It's worth noticing that it's pointless to censor requests like "gab.com" anyway (though that happened in my case). A person typing them already knows what they want. Now, try "right wing social media", "free speech media", "social media without censorship", etc. For me it doesn't show anything relevant but the links to the "correct" think tanks. Does this fact prove the malign intent of Google? No, but it's still there and you know it (except they consider this a virtue).
One of the problems is that black hat SEOs (among other people) have huge economic incentives to spread misinformation, including about the election. This is of course, an eternal cat and mouse game. This is not new, I remember when gmail started filtering chain letter scams more than a decade ago.