Oh that's funny, I have the same laptop with you!

$ neofetch --off

  sscarduzio@nash 
  --------------- 
  OS: Ubuntu 20.10 x86_64 
  Host: XPS 13 7390 2-in-1 
  Kernel: 5.8.0-40-generic 
  Uptime: 3 days, 10 hours, 34 mins 
  Packages: 3506 (dpkg), 14 (flatpak), 27 (snap) 
  Shell: bash 5.0.17 
  Resolution: 1920x1200 
  DE: GNOME 
  WM: Mutter 
  WM Theme: Yaru-dark 
  Theme: Yaru-dark [GTK2/3] 
  Icons: Yaru [GTK2/3] 
  Terminal: gnome-terminal 
  CPU: Intel i7-1065G7 (8) @ 3.900GHz 
  GPU: Intel Iris Plus Graphics G7 
  Memory: 7620MiB / 15781MiB 

I use fractional scaling hidpi (1.3x) and no issues at all. But coming from a 2015 MBP 13" retina display, I can definitely tell the difference, and the MBP was much nicer to look at.

I opted fro the FHD+ instead of the 4K screen in my Dell for two reasons:

- 4K is *WAY* beyond Retina, which is already very dense for me.

- I was afraid the 4K would drain the battery (especially on Linux)

I really hope Dell will offer a sane ~3K display (i.e. Retina levels) in the future and remove the burden of choice for their customers (at least where it's not needed).

Before you ask: no coil whine for me, but the thin rubber feet peeled off after exactly one year. This pissed me off on a £2K laptop.