UAC delivered a batch of fifth-generation Sukhoi Su-57 fighters to the Russian Defense yesterday.

Judging by the video, there are at least 2 aircraft in this batch, but according to the take-offs there are up to 3.
The fifth-generation fighters were accepted by the technical staff, underwent a full cycle of tests at the factory and were tested in various operating modes by pilots of the Russian Defense Ministry.
According to former pilot and Russian blogger Fighter Bomber: "It was stated that Su-35s were also transferred, but they were not shown to us in the video."