[cascades42]

AC power is becoming more common on flights, and I speculate that you will be able to use Bluetooth headphones.

Otherwise, yeah probably a multiple battery solution.

I don't really see myself caring about the movies during a flight use case.

For working during a flight, I'd greatly prefer the Vision Pro, as I am easily distracted by my surroundings and would value the improved ergonomics over being hunched over a laptop (I'm flying in coach). And for reading PDFs and web browsing, ergonomics again seem superior to a smartphone or tablet.