A lot of them are taken out of context see:

https://www.youtube.com/watch?v=Mhg8AXXHoRE

I did find some photos of supposedly nazi-symbol-wearing Ukrainian solders but I didn't recognize the symbol before reading the explanation, maybe they didn't too?

Also, I found some photos of Russian soldiers wearing such symbols too:

https://www.businessinsider.com/russia-fighter-neo-nazi-symb...