How can I figure out cooking times for an Instant Pot? If I want to make dal (let's say) in an Instant Pot, I google someone else's recipe and find that the pot should be at pressure for 12 minutes if you're using red lentils and 15 mins. if you're using green lentils. Is there a way to calculate that on my own (i.e., some equation or formula that people use to develop pressure cooker recipes)? Or does everyone just figure it out by trial and error?
Instant Pot has a page with cooking times for various things on it:


https://instantpot.com/instantpot-cooking-time/


However, there are also lots of good pages out there with more specifics.  For example, chicken thighs (fresh, frozen, bone in vs. out, brown first vs. not):


https://paleopot.com/recipe/instant-pot-chicken-thighs/