It's FOSS - https://itsfoss.com/arch-linux-32-bit/
Brief: Arch Linux joins the growing list of Linux distributions that terminated support for 32-bit systems.
Arch Linux has ended support for i686 architecture i.e 32-bit systems. This is not a sudden decision because an announcement was made in January this year. Decreasing popularity was cited as the driving factor behind this decision: “Due to the decreasing popularity of i686 among the developers and the community, we have decided to phase out the support of this architecture.”
Since March 2017, 32-bit images of Arch Linux have not been available. Existing 32-bit installs were given this ‘grace period’ to plan their switch to other Linux distributions