The signal to noise ratio on Instant Pot recipes isn't great, in part because of the popularity of the IP. Many people seem to treat their Instant Pot as a roided-out Crock Pot. There's a big "dump meal" subculture out there that loves to sacrifice quality for time, convenience, and expense. I guess that's cool and all, but these people shouldn't be writing recipes.
Anyway, I have an 8-quart stovetop and a 6-qt Instant Pot duo, and they mostly get used for making stock. I've found the guidelines for pressure-cooked stock in Modernist Cuisine (and the At Home version) to be very good. And speaking of pho, their pressure cooked oxtail pho broth recipe is solid.
A great take-home suggestion from the MC books is that pressure cookers are fantastic for cooking fruit and veg that will ultimately be pureed or turned into soup. It takes remarkably little moisture to pressurize a pressure cooker, so you can cook the bajabbers out of stuff in a sealed environment and not lose much flavor to the cooking medium (or to the atmosphere). And they're also fantastic for getting that braise done *like right now* if you need to (or otherwise tenderizing tough cuts like short rib, pork belly, octopus, chuck roasts, in rapid fashion). And beans. Haven't yet done risotto, but it's on my list...