Russia spent way more on its nuclear logistics than on its conventional logistics.
The reason for this is simple, Russia (Soviets) had a different operational sphere than today.
They had 2,000,000 soldiers in Poland and East Germany ready to pour into France along railways and highways.
They didn't expect to ever have to operate in open ground (Ukraine and Belarus) where German breakouts in WW2 caused fronts to collapse or be enveloped in open field warfare.
Russia is confronting a problem it was never prepared for, it did its best to update and modernize but that takes time, and it is doing its best to control costs. 200,000 soldiers to do a job the Soviets expected it'd need 10,000,000 to do.
In the battle of Kursk which took place in the same areas as war today, the Donbas region alone had 2,000,000 soldiers operating against the Germans.
Do not mistake that the Russians have two legacies. A conventional (described above), and the strategic.
The Russian strategic advantage is nightmarish and real.