It was enlightening to read/watch the realtime assessments of the sabotage from US leadership. The original storyline from American leadership was that Russia did it. That this story got any legs was an insult to the intelligence of any thinking person. The pipeline was a major revenue source for Russia, and probably a major reason why Germany was slow to back Ukraine.
Eventually leadership realized that this was a terrible angle, and now the story is that they have no idea who did it.
My take is that it was either Ukraine or the U.S. And even if it was Ukraine, it was done with the U.S. president's approval and tactical support.