[General] For anyone who uses an instant pot for sterilizing, what settings do you use?

I have been using steam for 90 minutes on smaller stuff, and 2 hours for bigger things like grain jars. But is there any difference between that and pressure cooking? Should I pressure cook over steam? I ultimately want to get a pressure cooker to do larger sterilizations at a time, but for now I’m curious if what I’m doing is good.