seen at https://udd.debian.org/lintian/?packages=gcc-13

lintian should not complain about /usr/libo32, it's also not complaining about
files in /usr/lib32, /usr/libx32 and /usr/lib64.

there maybe a follow-up check leading to false positives as well:

binary-from-other-architecture
[usr/libo32/go/13/mips64el-linux-gnuabi64/image/png.gox]

there are no warnings for other non-default multilibs.