/usr/share/man/man1/x86_64-linux-gnux32-strings.1.gz is in binutils-x86-64-linux-gnux32 2.30-15ubuntu1.
This file is owned by root:root, with mode 0o777.
It is a symlink to /usr/share/man/man1/strings.1.gz
/usr/share/man/man1/strings.1.gz