FWIW, my travel laptop for roughly four years of travel was an old X61 ThinkPad with Kubuntu. It wasn't the fastest laptop with the best specs in 2016, but for $100, it made for a relatively decent device with a solid keyboard that was cheaper and more useful than an iPad. My current travel laptop is a T450s, but I've yet to install Linux on there as it's the second newest laptop in my collection, and it's nice to have a Windows 10 based backup just in case. My T420 runs Ubuntu Budgie, so it's a "I'm bored" laptop to use at home, but it's a bit too heavy for the road. Every so often, I consider buying a new toy to use as the Linux travel laptop, but the right opportunity hasn't come along yet.
Linux is easy enough for somebody who just wants a computer to work if they're willing to put a little bit of effort, and for travel purposes, I'd rather take my odds with a travel laptop using Linux on a hotel wifi versus Windows.