What it immediately brings to mind is https://en.wikipedia.org/wiki/Air_France_Flight_4590

I think people would more likely associate "boom" with the times planes not-so-spontaneously explode

Well most aeroplanes don't spontaneously explode, but the Boom's immediate progenitor Concorde is famous for having done exactly that in Paris upon takeoff. And that was the end of that.

Sonic booms are a continuous wavefront, not caused only once upon crossing the "supersonic speed barrier", but radiating outward continuously from the aircraft (or rather a compression point in front of the aircraft) as it travels. Everyone under the flight path of a supersonic craft gets to hear the boom as it passes over them, even though it is "already" supersonic.

Likely due to the relation between supersonic jets and sonic booms https://en.wikipedia.org/wiki/Sonic_boom

Not worse than Slack as a productivity tool, and yet it didn’t seem to matter.