This covers mixing.
Make sure it’s non destructive
I don’t use it on my vocals because over the years from singing live in big venues, I’ve learned how to develop my own dynamic microphone technique,
It the studios, dynamics are curtailed to avoid digital clipping so you have a constaint to contend with in your vocal performance. In other words you can’t belt out a quiet piece as you’ll lose the tone.
I think Parallel compression will work better for instruments for example drums. This type of compression is very “huge”, I mean high ratio and extreme setting for attack and release and low threshold, and combining with the original sound you can get a much powerful punch.
They should really call it expansion instead.