Notice there is no double sig in there. Also note that Rodnovery is a neopagan religion, associated with nationalism. It’s the Slavic equivalent the Norse pantheon fetishism you see in the West in the form of Odinism.

You should assume they’re Nazi symbols because they are, even if Nazis stole a lot of symbols from everyone else. The sig was first adapted into the double sig in 1929 to be used as the Schutzstaffel logo