Do you recall the wave of people breaking their TVs with the Nintendo Wii controllers?
I'd expect a similar wave of people breaking their expensive Vision Pros if they try cooking with one. It's a terrible idea. First, most kitchens are cramped, full of low-hanging cabinets to break your Vision's fragile glass into.
And then, keeping those open vents around vapors full of fat and tasty food bits is a great way to cover the circuits with grease.
We already have a solution for something telling you what to do next, and it's called an iPad with a stand. A phone also does the job and has much lower chance of incidents than a headset, despite yes, you may need to wash your hands from time to time to scroll down. Or... you can simply use assistive features and voice for that. Siri is going to get a lot smarter thanks to LLM, much sooner than Vision Pro will become light and pragmatic for such purposes.
Regarding this "it'll know where things are in your home", let's use basic logic here. It can learn the layout of your rooms and where your immovable furniture is. But no, it can't know where everything that moves is, because this means you literally can't move anything unless you have the headset on to track its location. Or slap expensive AirTags on every single jar and utensil maybe. All solutions would be hilariously impractical. And... we'll end up with where I started: a broken Vision Pro glass as you slam it in a cupboard while trying to fish out a jar of condiments.
I don't know what is about VR that makes people pull out the fantasy scenarios. It's simply a (bulky) screen with pass through. It's not a wizard. It can't know things unless there's a way for it to find them.
We can imagine a super-thin model that you can keep on your face 24/7 and sleep with it too, so it tracks your entire life forever and knows you better than you know yourself. And it synchronizes with your spouse and children who also wear their own headsets 24/7. And it's unbreakable. And the battery never runs out. We can imagine many things. They don't exist, and won't exist any time soon. "Not on the horizon" as Steve Jobs used to say.