When Arch Linux installation, cannot find nvme0n1 in DELL XPS 13

When you do lsblk, it does not show your SSD, then it means RAID for SATA Operation is on.

Simply open Bios -> System Configuration -> SATA Operation and set “AHCI”

Refer Install Arch Linux with Full Disk Encryption (LVM on LUKS) for Dell XPS 13 – https://gist.github.com/chrisleekr/a23e93edc3b0795d8d95f9c70d93eedd