I joined the Instant Pot religion. I mostly use it as a pressure cooker, but the fact you can also saute and brown things in it, simmer them, etc makes it really versatile. The cooking modes are confusing though and the pressure cooker is lower pressure than typical American electric pressure cookers.
Here’s a cheat sheet to temperatures for the Instant Pot. I believe these come from the official manual. There’s also great detail in this review.
Note that simmering means to keep the pot just below 100°C. It’s not quite boiling, but there’s still a little steam nucleation which makes the tiny bubbles. In an Instant Pot that means Slow Cook on Medium or High, probably with the lid off.