MarsSeed [1] filed a deletion request for lib32-libinput [2]: Orphaned lib32 package. There are no dependents on AUR. Seem its 64-bit variant is only needed by some system components like window managers, and the qt5/6 runtimes. Therefore it's safe to conclude this is not needed in 32-bit on systems running an x86_64 software stack. [1] https://aur.archlinux.org/account/MarsSeed/ [2] https://aur.archlinux.org/pkgbase/lib32-libinput/