The people ‘fleecing the west’ are those reselling Russian oil at doubled or tripled prices in Europe. Putin is selling oil at totally reasonable prices to anybody who lacks ideological afflictions that would prevent them buying directly.
No, the reason that Russian revenues are up is that their exports are being sold at much higher prices than they were prior to the invasion to the 90% of the world's population who are ignoring Western “sanctions”. But yes, Russian oil is still making it back to Western Europe. The woke leadership countries of Western Europe like Biden have few “ideological afflictions” and would sell their own grandmothers into slavery for a few bucks. They are buying Russian products through shell companies then shipping it through circuitous routes to hide the transactions. It is as simple as that.