Other than the pitiful 4 hour battery life, the laptop still runs fine, and mostly does what I need it to do for a permanently-docked daily driver.
(The external "carbon-like" skin texture just disintegrated on it after a few years, and the hinges got loose, but otherwise it is tip-top, still functional!)
Just from an ACPI perspective, I'd expect the Linux variant to (at a minimum) be built with the Intel compiler and the Windows one with Microsoft's. It is likely that there are far more differences, though.
$1400 for a laptop with 1920x1080 at 60hz in 2024 is a joke. $200 more gets you a 3024x1964 @ 120hz, with an M3 processor and the ability to get warranty service walk-in anywhere around the world.
Can't comment about XPS, but I feel that it'll be the same.