During the cold war the Soviet Union needed buffer States. Are we now, 70 years later, having the Soviet Union again? I thought it dissolved in the '90, exactly

During the cold war the Soviet Union needed buffer States. Are we now, 70 years later, having the Soviet Union again? I thought it dissolved in the '90, exactly when the Austrian and Hungarian PM cut the barbed wire between their Countries. Hungary was NEVER part of the SU. In fact Austria risked the same fate of Hungary: after 10 years of Allied occupation they were willing to sign ANYTHING to get rid of foreign armed forces, they accepted VOLUNTARILY to be a neutral State. The same thing someone asks Ukraine to do today. History repeats.