To be honest I don't think we will ever know who blew up the pipeline. I can see your thinking that by blowing up the pipeline Russia could use it as propaganda weapon to blame the Americans. If Russia did blow it up it played into the hands of Washington as Blinken, Nuland and Sullivan all talked in gleeful tones how this was great news that ended Germany's reliance on Russian gas and presented the US with the opportunity to sell LNG to Europe.
I did come across an article about a German investigation into the bombing:
https://legalinsurrection.com/2023/02/top-german-investigator-no-proof-of-russian-involvement-in-nord-stream-pipeline-blasts/
"Germany’s Federal Prosecutor General, who is leading the official probe into the blasts, said in a newspaper interview published on Friday that there is no evidence tying Russia to the undersea explosions near the coast of Denmark.

“According to investigators, the probe into the blowing up of the Nord Stream gas pipelines in the Baltic Sea has thus far not yielded any evidence of Russia’s authorship,” the German newspaper Münchner Merkur reported Friday, citing the country’s top investigator.

The German news channel NTV reported the Prosecutor General’s remarks:

When blasts hit the Nord Stream 1 and 2 gas pipelines last September, Moscow was quickly seen as a suspect. Now the investigators are clarifying that there is no evidence of this so far. (…)

So far, German investigators have found no evidence that Russia was behind the explosions that hit the Nord Stream 1 and 2 gas pipelines. “This cannot be proven at the moment, the investigations are ongoing,” Prosecutor General Peter Frank told the (newspaper) “Welt am Sonntag”. Supported by two research ships, water and soil samples as well as the remains of the pipelines were collected, and the crime scene was also comprehensively documented. “We are currently evaluating all of this forensically,” [the German Public Prosecutor added.]''
I am willing to keep an open mind on this incident as we far from knowing all the facts about what happened.
Hive needs a plurality of voices for it succeed and blossom. Good luck with your blog.