And yeah, a lot of it sounds similar to the old FM radio compression, which for those who are too young to remember was a pretty bad thing.
That I remember from my radio broadcasting days back in the mid to late 70s! The original Orban Optimod was the supposed king of audio processors back then. If I remember correctly, it was the first multiband compressor for broadcasting. Most stations ran it way too hot, though, and you could hear pumping all over the place. The station where I worked was small and couldn't afford the big stuff like that. We just had a pair of linked Gates limiters for stereo on our FM transmitter. Or at least they were supposed to be linked. A little RCA plug jumper cable went between them so they shared each other's gain ride signal. The largest signal won and both channels were compressed the same. That was to preserve stereo imaging. But for some reason our chief engineer liked to remove the jumper and let each side (left and right) ride its own gain. I argued with him that could degrade what little stereo separation there was in multiplexed FM stereo transmissions, but being the young guy I lost. He wanted left and right at "maximum loud" each.