This is two Russian football (soccer) fan clubs fighting.
~Heavy sigh...
This is two Russian football (soccer) fan clubs fighting.~
I don’t know if it is somehow related to soccer but there are certainly not enough information to identify either group as muslim in this video.
You can hear occasional ethnic slur but it may be addressed to individual people involved in a fight.
I mostly see a bunch of two-bit idiots, wasting their energy for no good reason.