Re: Complete ?!?
I've got the 2018 version (bought new old stock at end of 2019 for about $1100, which would be what, maybe 800 pounds?). I spend probably 2/3rd of my time on it working in Linux and 1/3rd in Windows. Runs Linux great, no problems with hardware.
You can't scale display as precisely in Linux as you can in Windows, but that's a Linux software thing I think -- I haven't dug into it because the scaling presets work fine for me. Battery life is maybe 20% shorter in Linux. Best trackpad I've used that wasn't on a Mac, biggest frustration is my bluetooth mouse has to be repaired every time I switch OS.