No, I don't believe all the western reports of that. But, they have committed a large part of their Army. There are still a divisions worth of men in and around moscow and many of the best weapons and much of their best two divsions remain in Russia. Their Air Force remains pretty much in tact, losing less than 100 planes. Their Navy really uneffected, lost one ship. They kept their best tanks in Russia until a few months ago. Their first waves of men were basically conscripts and draftees or bullet to the head if you don't go to Ukraine. Hell, you can put up data on-line that shows nearly a divsion in western Russia. Plus, troops in Belarus and other places. They have troops doing things in Syria still. RUssia can still throw a lot at Ukraine. Russia threw the most inexperienced people into Ukraine to fight first, throwing bodies and old shit at it.
Russia is moronic in many aspects, playing a numbers game that they think(in reality it does) against Ukraine. Ukraine has a big problem of running out of people to fight. Russia does but, it is much larger than Ukraine.
Right now basically their 1st Corps and 2nd Corps are in Ukraine. 6th Army is up near Finland. their best tank corp is in Moscow. They have 2 or 3 divsions in the east of Russia. nearly a division on the border of Russia/ Georgia. They have things spattered all over the place.
We do propoganda as well. They won't tell the people that the Urkaines counteroffensive right now is going nowhwere.