Almost everything works out of the box. A few tweaks are required for audio and video to function properly.

Intel graphics

I had the exact same problems with glitchy 2D graphics and non-functional 3D graphics that I did with the Dell XPS 15. The solution is to use the modesetting driver:

# /etc/X11/xorg.conf.d/20-intel.conf

Section "Device"
  Identifier "Intel Graphics"
  Driver "modesetting"
EndSection

Note that the T14S does not take a battery life hit like the XPS 15 did as, unlike the Dell, it does not have a dedicated GPU to offload from.

Audio

ALSA couldn't recognize any audio devices (be that input or output) when I initially used the system. Installing the sof-firmware package fixed the problem.

Refers to

• Arch Linux on XPS 15 9520