I’m unlikely to buy a foldable laptop, but a foldable monitor while traveling sounds kinda nice. I’m working from a hotel right now, so I can easily imagine it. Folding flat would offer protection from scratches in a bag/backpack and take less space. Would be hard pressed to fit a 17” portable monitor in my bag, but if it folds in half that’s more tenable!

Slightly incidental, but after years of working out of hotel rooms, I’ve found that a 15.6” 4K portable display placed on a small tripod (Arca-Swiss mount) sitting directly above the main display of my 14” Macbook has been the perfect travel setup. It’s a dual-display setup, portable (similar area to the computer itself), similar desktop area and font resolution to the native panel, and prevents you from craning your neck.

Mind sharing which one you have please? I’d like to drop one in my laptop bag sometimes.

Sure, I have an Innocn PU15-PRE. Just to reiterate that a 15.6” 4K is definitely the way to go. I also tried 14” 4K and 1440p panels but - on account of the way scaling and font rendering works in MacOS - they’re a big step down. Even moreso if you’re doing anything graphically intensive - you’ll want to use non-native scaling on a 14” 4K which is expensive for the GPU. The 15.6” panel doesn’t have this problem because the “effective 1080p resolution” divides cleanly into the native 4K panel resolution.

I spent ages working through this.

You can probably fix this with BetterDisplay (formerly known as BetterDummy?). I used it with my 3440x1440 monitor. https://github.com/waydabber/BetterDisplay