I think NordStream is a great example. It was a big deal. I'm actually surprised that you're the only one that mentioned it. Everyone (I know and discussed with) agrees that Ukrainians obviously didn't bomb their cities, but everyone (including me) would also prefer to blame Russia for exploding NordStream, even if that doesn't make sense (unless it was a huge false flag).

It's a tough pill to swallow, but (at least in my circles) most people did it and after the initial shock entertain the possibility that it was actually done by the US/EU.

Just to be clear: it doesn't really change my perspective on the war or anything else - whoever did this was putting pressure on Russia and I support it. This move made "peace supporters" sponsored by Russia toothless, and cemented European support for Ukraine.