Oversupply or good milk supply?

Is there a difference between oversupply and just having a good milk supply?

I’ve been under the impression I have an oversupply, which I’m pretty sure I did because my daughter was having green poops and lots of gas.

Well, that seems to have gone away but I’m still leaking A LOT and engorged if she goes too long between feeds. It’s particularly bad for the breast I’m not using during that session as I’m only offering one breast at a time.

So I’m torn between pumping that breast that isn’t being used in between feedings if I just have a good supply, or leaving it alone cause I do have an oversupply.

any thoughts??