Look up RIM (Russian Imperialist Movement), which is operating in the Ukraine.
en.wikipedia.org
Hell, look at Wagner. Wagner, if you know your Nazi history the name itself should make your ears standup and if it does, you'd be 100% correct in the reason why it does. The co-founder of Wagner was a legit neo-Nazi and Wagner was his callsign hence the name.
en.wikipedia.org
Dmitry Utkin - Wikipedia - Cofounded Wagner. Below is a picture of his nice tattoos.
You are a victim of psyops. Notice I never denied the existence of Neo-Nazis in the Ukraine but where you failed is thinking that Russia is fighting neo-Nazi instead of pursuing its own imperial ambitions. In fact, some of the intellectuals that Putin himself look to for inspiration of his geo-political goals are straight fascists. See the following:
Probably the biggest influence on Putin's thoughts about Post-Soviet Russia and "A New Third-way" (aka fascism usually)
en.wikipedia.org
Dugin, another close friend of Putin who is also an outright fascist who is also very imperialistic. His daughter, who was a paid propagandist and imperialist apologizer got blown to pieces recently btw if you remember.
en.wikipedia.org
P.S. The Soviets worked with the Nazis as allies until they were stabbed in the back. They even helped them invade Poland and partition it at the very start of WW2. They didn't have an issue with Nazis until they were in their backyard and Russia itself has a history after WW2 of state sanctioned anti-semitism that were on par with the Nazis
www.newworldencyclopedia.org