Quick word though, if you have issues with dell software on Linux you're SOL even if you pay for software support. Dell does not offer any paid support for Linux machines they sell or software they distribute on them.
Dell XPS is an outstanding laptop, I've not found yet better laptop if you don't like macs
However, Dell is not going to be my next machine because:
- dev edition is hard to get (at least for me) and regular version does not work well with Linux (finger scanner requires to install OS patches, WiFi is dropping ocasionally , I had some crappy WiFi adapter installed in 2017/18, scaling is a big issue etc)
- mine XPS had a weirdly placed camera (bottom left corner)
- again, mine model did not have 4k display (comparing to retina I had back then)
- 13" is too small and 15" is too heavy, I would like something in the middle which might seem weird for you
- there is no finger scanner for dev edition (Yubico is here to help)
As you see those are very minor and subjective issues. Dell is a favourite machine of a friend of mine for years already, however I find Apple winning premium laptops battle in my eyes.
PS. Ex-Dell XPS user