Here's an easy test case on a topic which is HEAVILY modified by Google. There are many such cases Google distorts searches but the following query is purely for illustration of the problem because it is so obvious.
1. Search Google for "ukrainian who shot his commanding officer" without quotes
2. Google serves me nothing but MSM articles of Russian this or that. The word Russian wasn't even in my search string.
3. Add the Google operator MINUS SIGN Russia
4. Results:
a) Policeman feared Chris Kaba would kill, court told
b) Media: Russian Repeated Offender Kills Five More His ...
c) President Volodymyr Zelenskyy and First Lady Olena ...
d) Ukrainian Galician Army
e) Article from 2017 entitled Killed Defense Intelligence Officer Was "The First Donetsk Cyborg"
f) Shots fired at car carrying Ukrainian President Zelenskiy's ...
6. It comes up on Yandex immediately with the original query