On the Mick Gordon insta he was showing intense upward spectral compression to expose hidden plugin artefacts for sound desing. So I start digging to incorporate that technique into the toolbag and I found this awesome and opensource pluging that has a lot of versatility for that and many other things.

 

Oh yes, try it out, it's even free here: https://github.com/robbert-vdh/nih-plug/tree/master/plugins/spectral_compressor

 

its really awesome. been using it for a while now. I wish the ui was a bit more, but it is what it is. Be careful using it too, some crazy volume spikes at times. make sure you have a limiter on.