Putin and the Pro Russians have been rightfully talking about the Fascist presense in the new Ukrainian government, but it is a very hypocritical position, as Putin gladly resorts to Russian ethno-nationalism to strenghten his own rule.
From what I've seen, Ultra-nationalist and down right neo-nazi rhetoric are also very present in the pro-Russian side.
Meanwhile, Putin's authoritarian (but capitalist) government is trying to maintain, if not increase its sphere of influence and to do so, they are using anti-fascist rhetoric in a PR stunt.
Anti-Fascism used by the state as a PR tool is really a legacy from the USSR, and it is something that doesn't really mean anything anymore in the mainstream political circles there.
Fascism is not just a slur on right-wing endeavors, but the historical conditions in which fascism rose in the 20th century are once again converging. - and what makes the threat imminent is that it is a world phenomenon, not limited to just one regime or nation.