Incorrect. The Concorde had to run full afterburner on the Olympus 563 turbojets to achieve the Mach 2.0 cruising speed.
Well your wrong. The Concorde usually flew around 1.7 Mach and did not use AB for most of the flight. That fits the definition of supercruise. It needed AB to get that fast in the first place, but after that they switched the AB off. It is super CRUISE, not ‘super accelerate’. The whole point of super cruse is to turn off your AB during the cruise portion of the flight and ‘cruise’ ‘super sonic’. I.E. super cruise. If they left the AB on the Concorde would never make it across the Atlantic.