If I buy a smart fridge, even though it has a computer in it, I don't expect to be able to install arbitrary software on it in a supported manner. Apple doesn't

If I buy a smart fridge, even though it has a computer in it, I don't expect to be able to install arbitrary software on it in a supported manner. Apple doesn't advertise as a computing platform for everything, they advertise as having a whitelist of apps, and that's what they provide. I don't want a phone with a whitelist, so I don't buy iOS phones. But some people do want that type of product, and do buy them. You do have something to do with the os. Your app is running on the os.