They intended to take Kyiv, their own intel proves that -
"Blitzkrieg failed. It is simply impossible to complete the task now: if Zelensky and the authorities were captured in the first 1-3 days, they seized all the key buildings in Kyiv, they gave them the order to surrender - yes, the resistance would subside to the minimum values.
You are too gullible and willing to believe anything that suits. "Their own intel", as you describe it, is in actual fact a random posting on Telegram. I came across this particular piece of unattributed bullshit a few days ago and only an idiot with an agenda would accept it at face value which explains your embracing of it.
The use of a smaller invading force plus stand off weaponry has allowed the Russians to shape the battlefield with Ukrainian forces now largely pinned and lacking manoeuvrability. This is demonstrable by reality on the ground. No air cover, fuel. This has become apparent even to some of the commentators whose words you parrot.
Only a fool believes that Russia attempted to "blitzkrieg" Ukraine. They simply did not have the necessary numbers in the invading force. An unattributed post on Telegram is just that. It is not the secret Russian invasion plans, no matter how much you want to believe.