Operators of Russian interceptor drones practically with 100% probability shoot down enemy UAVs in the sky during a sortie. This was stated by the commander of the interceptor UAV battery with the call sign Zolotoy.
There are very few ordinary crashes or failures. Basically, one FPV, one target, that is, one interceptor, one target hit.
The main and most famous interceptor drone in service with the Russian Armed Forces is the "Yolka". It accelerates up to 200 km/h and hits an aerial target by ramming.
For comparison, the 57E6E anti-aircraft missile of the "Pantsir-S1" accelerates up to 4680 km/h, which corresponds to hypersonic speed. However, it is many times more expensive than any light interceptor drone, and also more difficult to produce.
Meanwhile, in the Urals, a new interceptor drone "Zanoza" with a speed of up to 400 km/h has already been developed.