/usr/lib/x86_64-linux-gnu/libqrencode.so is in libqrencode-dev 3.4.4-1build1.
This file is owned by root:root, with mode 0o777.
It is a symlink to /usr/lib/x86_64-linux-gnu/libqrencode.so.3.4.4
/usr/lib/x86_64-linux-gnu/libqrencode.so.3.4.4