Oh sure. Because the costs of this war are real cheap for Russia. The war alone is costing >$1bn every 2 days before the sanctions. Russia still hasn't even captured the Donbass and loses dozens of tanks and APCs every single day. Personnel losses now at 23,500. 300 dead in 24 hours between 9am April 30th and May 1st. Russia hasn't seen such losses since WWII, Putin has screwed up massively.Russia has captured east regions of Ukr and created economic crisis in EU which is creating pressure on NATO, not otherwise. What you have said, may not happen in near future. There are few pockets of areas of Ukr-resistance force, but majorly everything has been captured by the Ru army.
I don't think Russia tried to take Kyiv , that was suppose to be a diversion.

З початку повномасштабного вторгнення в Україну російська армія втратила близько 23,5 тис. військовослужбовців - Генштаб ЗСУ
Бойові втрати російської окупаційної армії за минулу добу становили близько 300 людей особового складу, а з початку повномасштабного вторгнення в Україну 24 лютого станом на ранок неділі, 1 травня, досягли близько 23,5 тис. осіб, повідомляє пресслужба Генерального штабу Збройних сил України.

The combat losses of the Russian occupation army over the past day amounted to about 300 personnel, and since the full-scale invasion of Ukraine on February 24 as of Sunday morning, May 1, reached about 23.5 thousand people, according to the press service of the General Staff.
"The total combat losses of the enemy from 24.02 to 01.05 were approximately 23,500 (+300) people eliminated, tanks - 1026 (+18) units, armored combat vehicles - 2471 (+26) units, artillery systems - 451 +15) units, MLRS - 151 units, air defense equipment - 80 (+3) units, aircraft - 192 (+2) units, helicopters - 155 units, motor vehicles and tank trucks - 1796 (+20) units. , Ships / boats - 8 units, UAVs of operational and tactical level - 245 (+13) units, special equipment - 32, cruise missiles - 84 "



Far too costly for a diversion, they tried and failed, and for a while nobody dared tell Putin what was really happening on the ground, it was only when NATO questioned whether he really knew that he found out, then they pulled out and concentrated on the South East.
If Russia was winning, why does he keep threatening nukes?
Putin is inching towards his nukes, threatening to annihilate the world if he fails to capture Ukraine, says foreign affairs expert
The world has to stop Russian dictator Vladimir Putin, because he is an existential threat to the human civilization, international affairs expert Ivan Yakovina said in an interview with NV Radio. We print an edited transcript of the interview below:
In diplomatic parlance, Lavrov essentially admitted that their vaunted offensive in Donbas is stalling, the war is lost, and Russia has nothing to counter Western weapons pouring in Ukraine. Politically and militarily, Russia is backed into a corner.
Since Putin can’t accept defeat, the Kremlin is indicating that nuclear weapons are on the table as its last resort in this war.