I am going to show you how to make the easiest instant pot yogurt. I make yogurt with this method regularly and I love it! It's great because there is no boiling involved. You can literally get everything going in minutes, walk away, and come back to thick yogurt!
I recommend whole milk or 2% milk for the thickest yogurt. You can use nonfat yogurt, but you will need to add milk powder to make it thicker. I haven't tried this method, but many ppl tell me it works.