I have XPS 9380, and it's far from ideal:

- when using external display, video tearing would be visible either on internal or external display

- Xorg doesn't really support different scaling for different displays, and Wayland has other issues

- battery life is shorter than on Windows

- graphics performance is worse, at least in Firefox/Chrome (smooth animations on Windows would be choppy on Linux)

- touchpad is not great on Windows, but it's even worse on Linux (even after fiddling with settings, and trying many solutions, using it on Windows feels better)