That doesn't make sense. Why would you commit less soldiers if you wanted a quick victory? You would want to use more to maximise their impact. You'd use less if you wanted to make the job of managing supplies and rotations easier.Hard disagree.
The Russia did hope to blitzkrieg and surround the capital region to scare Kiev to sue for peace and quick negotiated victory.
Did they actually hope to capture Kiev? No.
Did they hope to scare it into submission by surrounding key cities as rapidly as possible? Yes.
Hard disagree.
When you dedicate ONLY 120K in the initial thrust across thousand mile front, you are expecting the enemy resistance to quit and sue for peace and quick negotiated victory. They did expect Ukraine to sue for peace quickly, but when that failed, now their new strategy is grinding them to ashes/rubble via attrition. And you need to concentrate your forces to grind them down.
They most definitely expected a quick negotiated settlement because they thought Ukrainians would give up very quickly.
The idea that Russian generals went into war basing their plans around their enemy to collapse is absurd. In the Gulf war the Iraqi army was considered to be highly trained and one of the best in the world. It wasn't and it quickly collapsed. In the second Iraq war everyone knew the same would happen again, but NATO still planned it as if it was facing a full strength dangerous army.