Minuses: Many many issues with 4K support and Linux. 1 year ago hardware fault with screen getting black lines (very very disappointing for a premium laptop treated very well). Suspend never worked great (Windows not much better AFAIK). Some recent WiFi problems - probably hardware - will replace. Needed JackHack96’s patches installed when bought. Noisy coil hum (top problem mentioned for years on forums for many models of XPS, ignored by Dell through many model releases, maybe finally fixed now?).
Pluses: Worked with Linux. Dell kept improving Bios for 2 or 3 years, and many of the fixes were Linux specific.
I wouldn’t buy Dell again.
I would use Linux for a laptop again (Windows gives me hives, Apple pisses me off).