MarsSeed [1] filed a deletion request for lib32-osl [2]: Abandoned lib32 package, last updated in 2019. Not needed anymore by anything in AUR. Also there are no user votes or comments. So I recommend deleting this.
[1] https://aur.archlinux.org/account/MarsSeed/ [2] https://aur.archlinux.org/pkgbase/lib32-osl/
