Putin started tampering with the gas already during the summer of 2021. The effects of this were likely part of the calculus on the West's response to the war, which he severely misinterpreted given that we have decided to accept the current chaotic market conditions rather than give up Ukraine.
Putin is only mentioned once in that article and only in a context of people criticizing the dependency on Russian natural gas. There's nothing there that implies "tampering", and the article speculatively couches the moves in economic terms, prioritizing new delivery means. I suppose you just think Putin is behind everything.
https://www.cnbc.com/2021/08/24/russia-is-pumping-less-natur...