Many Chinese military commentators have come to the unanimous conclusion that the Russians seem to intend to turn the war into a long war of attrition at a lower cost.
But I don't think the long war of attrition is a clever way to do it. It is just the price paid for the wrong and confused strategy.
It IS the wrong strategy. The proper way to finish this is the mobilize about 2.5 million, have 800k in combat, 700k in support, 700k in industrial production and 300k as reserve for anything else. This lets you finish in about 1.5-2 years.
But this is compensatory in the end. It should have been 1.5 million around April, then you can do 6-700k combat, 500k in support and the rest in support or production. If they had done that they probably could have finished before or middle of next year.
Russia "low-cost" strategy is flawed, Ukrainian production is nonexistent in Ukraine itself. So unless Russians can reach those places it is a terrible strategy. A state at war, even a low intensity one is punished greatly for trying to "outproduce" ones that are fundamentally at peace. It is simply much better to push more effort and try to conclude the combat phase and move to the consolidation phase.
But the Russians, either through unwillingness or incompetence refuse to increase combat numbers to acceptable levels, the long-term costs to this will be significant.