LG to offer subscriptions for already purchased appliances and televisions, evolving into a provider for “Home as a Service”::Subscription fatigue is a thing and regulators are circling, but Korean giant reckons you're ready to cough up after buying hardware
For the time being, at least, commercial-grade appliances tend to either not have any sort of network or "smart" functionality, or such functionality is actually productive and not a continued money grab from manufacturers.
But there is a slow march toward making everything "smart", even in the commercial kitchen, and from there it's a quick jump to "sorry, your subscription has lapsed. To enable broil functionality, update your credit card info."
Unauthorized Bread is a short story/novella by Cory Doctorow that features subscription based appliances. It's the natural extrapolation of what you said. Good read. It's out there for free without much effort.
I just bought an LG dishwasher and it has some features that need to he accessed by an app over wifi. I haven't installed the app nor have I connected the appliance to my home WiFi. I don't plan to do either.