It looks like the work of a Ukrainian sniper.

Ukrainian sniper at work in the Bakhmut direction.

Bakhmut. The work of the "Ghost" sniper group of a separate presidential

Ua pov "Extreme Tourism Company" shows their sniper work against

Ukrainian flips off russian sniper (That is 1km away btw) and

Footage of sniper work.

Sniper work with extra precision.

Great work by our sniper on a Russian soldier in the Donetsk

GoPro footage from Marine Sniper "Yaro" Group work on UAF infantry.