Yeah, and there are >2,500 warheads. Good luck getting everyone underground in less than 10 minutes, plus there are earth penetrating warheads anyway.
You can make sure even people living in countryside are dead too, and overwhelm any defences.
It's going to go way down. They just destroyed their trading relationship with 500m people next door, then you have the fact that oil and gas is being phased out anyway. Not at this point, it's clear that Russia does not have the funds or resources to takeover Ukraine, and because Ukrainians feel their existence is threatened, they will never stop fighting. If this war extends over years, Russian deaths will exceed 1 million. Their currency is worthless, they've stabilised by have oil purchases in rubles and banning Russians from exchanging rubles for dollars etc., but nobody outside Russia will accept their currency at the stated exchange rate for online purchases, not even their ally China.