also called dynamic deceleration, among other names. The fighter jet flying at a high speed abruptly raises its nose momentarily to a vertical and slightly past vertical attitude, causing an extremely high angle of attack and momentarily stalling the plane. This will causes the plane brake and move behind the enemy aircraft and created a chance for the pilot to take down the enemy aircraft.
Not all jet can make this move ( Sukhoi and migs mostly are capable to make this move but some U.S military jet such as F-16 and F-22 also can make this move )
That Su-57 uses cobra maneuver to shoot down the MIG 29