Look at the two Nord Stream Pipelines! Billions invested in their construction, designed to funnel more billions back into Russia’s coffers; and the coffers of selected oligarch’s!
Now instead of being net earners, they are actually costing millions in maintenance for nothing in return!

According to reports, Putin has nothing to fear from his brainwashed masses; as yet.
But somewhere in his inner circle there must be people who can put two and two together, and who incidentally are seeing their wealth decrease rapidly.

Maybe the recent spate of suicides and murder-suicides of senior level executives in the energy sector is a sign of dissention.
Not to neglect the recent car bombing in Moscow!