It doesn't. Russia's benefit lies in insecurity and control over Europe's energy supply. This operation however reduces their control and influence. In the short term insecurity rises, but this is a one time thing and lasts until solutions are found, which definitely will be found. Gas prices might be higher, but Russia doesn't profit from them, as they can't send gas to Europe anymore and the prices for China aren't influenced.
It benefits however US interests: Germany becomes a more stable partner, no matter how this thing turns out. Currently Russia is blamed, so the German reaction is more severe. In addition, LNG prices are higher, but I don't think that was the main reason for that operation in the first place. Blaming the US, even if their responsibility is certain, in a time of crisis won't happen as a united front against Russia is still needed.
The more I think about it, the more I come to the conclusion that Poland's interests didn't lead to such a operation. They have even more problems with high gas prices than Germany because they don't have long term contracts with Norway.