/usr/bin/gio-querymodules is in libglib2.0-bin 2.50.3-2.
This file is owned by root:root, with mode 0o777.
It is a symlink to /usr/bin/../lib/x86_64-linux-gnu/glib-2.0/gio-querymodules
/usr/bin/../lib/x86_64-linux-gnu/glib-2.0/gio-querymodules