No. I don't think that's correct. The Concorde used its afterburners during take off and to get through the transonic region, where the drag is very heavy. Once you've gone past that the drag drops. At that point the Concorde can turn off the after burners.
IIRC Concorde could super cruise a Mach 2 which is unmatched. It would also flight supersonic for most of its journey which is also presented unprecedented difficulties.
Legend says the Tu-144 used afterburners the whole time while supersonic, but, then, it seems five units have engines without afterburners (RD-36-51's replacing the Kuznetsov NK-144 used in most of the fleet).
I wonder what was the noise level in those late models.
Not really, that's like saying "they relied on closing the doors to the aircraft to achieve supersonic flight". Both happened, but aren't related if I'm reading the comments correctly.
That's a really dumb response. Yes, it relies on closing the doors to achieve supersonic flight too.
The Boom plane doesn't rely on afterburners at any point in the trajectory to achieve supersonic flight. So yes, you would be reading the comments incorrectly.
Source: https://www.heritageconcorde.com/concorde-engine-re-heats