I'm hesitant to go into detail about this on HN because people on here will do their best to attack/criticise and there's not much to be gained from that.
The short version is that the last year's politics have uprooted a lot of beliefs I held formerly that are common in Europe (some examples: stereotyping Americans in certain ways, having the acceptable view on the Democrat/Republican divide, assuming that society will react proportionally to threats and consider the health of all people, assuming that Europe cares at all about what effects its policies have on less well-off parts of the world, the Russian government being evil and the sort of general European take of Europe being the "pinnacle of civilisation").
Happy to elaborate more in private if you're interested, but not in public (similarly, another effect of the last year is that I stopped using social media like Twitter).
You might want to look into who Navalny was before he got famous in the West (and what kinds of things he said), and what grounds the various claims surrounding this stand on.
I'm fully aware of Navalny's history, all politicians are flawed in some ways, and Navalny is even moreso. Do you think that assassination is acceptable for that? The evidence for the poisonings is ironclad by any world measures except RT. Remember, this is about the Russian government's abhorrent "evil" behavior. Your whataboutism is a weak defense.
Can you elaborate?
Was it the food, the politics, the work culture? Other?