Yes, they are much different in Europe. We have a direct comparison in Poland - over the last 20-30 years the levels of corruption almost equalised with western countries and it’s like night and day.
And I’m speaking both about corporate and government corruption.
Have you been to Russia? Do you know people that live there? Did you speak to them about corruption? (asking about anecdotes, because stats don’t appeal to you I understand)
If anyone in the West actually cared about corruption we wouldn't be sending billions in cash and military equipment to Ukraine.