I was away from my regular desktop dev PC for multiple months recently and only used a crappy laptop for dev work. I got used to it pretty quickly.
This makes me remember so many years ago starting to program on a dual core plastic MacBook.
Also, I’m very impressed by one of my coworkers working on 13 inch laptop only. Extremely smart. A bigger guy so I worry about his posture and RSI on such a small laptop.
TLDR I think more screen space does not scale near linearly with productivity