I'm very sceptical about such information. As said above they destroyed only about 10% of russian military equipment.
I don't know how reliable these numbers is, but there was 150 000 - 190 000 troops by the boarder. 90% of them is already in Ukraine. As reported by Ukraine, over 12000 were killed, over 30000 were injured or taken as POW's.
It's obvious that things don't gobas Russia planned. Blitzkrieg operation failed and they weren't ready for long war. They're struggling with supply. Morale of troops is low. But now when they didn't achieved what they planned they started to simply destroy cities and kill civilians.
That sounds a bit too optimistic. Wars lasts for years, how they couldn't have resources for two weeks? They started this war and don't think they might be THAT incompetent.
They didn't expected so much resistance. From US intelligence reports, Putin is isolated from real informationand nobody don't tell him truth what is exactly going on.
Not least being all the reports we hear of captured Russian soldiers who don't know why they are there.
I don't believe it's true. They know exactly were they going and they were only teached to tell that stupid excuse.