A lot of Russian economic data (like the chart you posted) stopped being openly reported after May. Now they are classified as State secrets.
The serious implosion is underway - unemployment, bankruptcies (Business and personal), inflation, Government deficits.
The sugar high of a few moth oil price spike has passed, and oil prices are now back down where they were before the invasion - but Russian oil and especially gas volumes are decreasing, and are on track to decrease much further in the coming months.
Oil and gas sanctions did not begin to be put in place until June - before that it was voluntary.
Come December 5th, when the EU has halted its import of Russian oil by tanker (90% of its former oil imports from Russia), the G7 are preparing secondary sanctions on other customers of Russian oil, who don’t adhere to the price cap.
A hard landing is in the works for the Russian economy. Worse than the 90’s, after the Soviet Union collapsed.
I understand that Russians LNG can’t be sold profitably to anyone other than Europe. It would have to be liquidfied to ship to China or India and Russia doesn’t have that capability.
The pipeline to Europe is their only means of shipping that gas.