Several sites, including OS Technix, are reporting that Arch will be collaborating with Valve [ostechnix.com]. A heavily modified in-house Arch distro is used by Valve for SteamOS.
In an exciting development for the Linux community, Arch Linux has announced [archlinux.org] a new partnership with Valve [valvesoftware.com], the company behind the Steam gaming platform and Steam Deck [steampowered.com]. This collaboration will see Valve financially support two major projects for Arch Linux: an improved build service infrastructure and a secure signing enclave.
There is speculation that Valve might publicly release SteamOS in the future or that native support for games on GNU/Linux will improve greatly.
Previously:
(2021) Valve's Upcoming Steam Deck Will be Based on Arch Linux--Not Debian [soylentnews.org]
(2015) Steam Now Has 1500 Linux-Compatible Game Titles [soylentnews.org]
(2015) Valve's SteamOS Dreams Beginning to Look Like Reality [soylentnews.org]