That makes sense. I always wondered why nobody copied their gaze + tap interactions. That seems way too basic to grant a patent for...
What I was thinking of was on iPhone. It was Eye Tracking + Dwell for selecting.
Hands act as a pointer on the Quest, with a pinch action to select and drag.
On the quest 3, I've felt like the screen is just a bit too low res to use comfortably as a monitor anyways, so I imagine the Frame won't be much different. The better weight distribution should help a lot though.