First of all, RIP Gorbachev.
The Soviet Union ceased to exist in December 26, 1991 [0]. Russia is not the USSR, and it's almost impossible it will never be anything remotely close.
Most of the former USSR industrial capabilities where either abandoned, razed or looted.
Russia's modern industry (including military) depends heavily on European (now sanctioned and obtained via third countries) and Chinese imports. This means that most of their industrial machinery, oil/gas extraction sector, automotive industry, chips... is now strained. They've almost stopped producing cars.
Russia is mostly burning the gigantic former USSR reserves until they dry out. And Ukraine is way bigger than Abkhazia, Ossetia or Transnistria so it has the largest burn rate since Afghanistan.
Just look up at their modern attempts of modernization. The T-14 Armata was expected to have over 100 of them built before 2020 [1] but only a few experimental units can be seen in the wild. Even the Iskander is a USSR design.
The "humiliation" is happening on both sides every day as we speak. No one will either "win" or "lose" the Russia-Ukraine war. It's just an endless attrition warfare [2] were both sides consume their huge military storage (Ukraine using a mix of exUSSR and NATO material and Russia using exUSSR material).
[0] https://en.wikipedia.org/wiki/Dissolution_of_the_Soviet_Unio...
[1] https://en.wikipedia.org/wiki/T-14_Armata
[2] https://en.wikipedia.org/wiki/Attrition_warfare