So, Stoltenberg is counting on the Kremlin, whose leaders have said they will never again trust the West, to sit down again with the West and again agree to another worthless agreement. Considering the difficulty the Kremlin has in accepting reality, I suppose it is possible.

On the other hand, perhaps someone in the Kremlin has finally read the Wolfowitz Doctrine. If not, maybe someone in the Kremlin has seen the US Government's Commission on Security and Cooperation in Europe's plan to break Russia up into a collection of independent small states. https://niccolo.substack.com/p/delusion

How is this to be done? Military conquest? A color revolution based on years of US financed NGOs permissively operating in Russia? Discrediting of Putin and his government?

The CSCE doesn't say, but it has to be done as there is the need to break up Russia into smaller states for "moral and strategic" reasons.