It's impossible to install Linux to the preinstalled SSD on any recent Mac, though on this one you can at least add your own additional storage and it probably won't be too hard to get Linux booting off that. Aside from the SSD the hardware seems to be pretty normal stuff that already has Linux drivers.
Though I don't see why anyone would want to pay the rather large price premium of this machine if they're not running MacOS on it.
Looks more like a fun weekend project[1] than an impossible task. At least for my mid 2017 MBP. I’ve always had issues with WiFi cards doing a hackintoshes or Linux on macs.
Though I don't see why anyone would want to pay the rather large price premium of this machine if they're not running MacOS on it.