/usr/lib/x86_64-linux-gnu/libayatana-ido3-0.4.so is in libayatana-ido3-0.4-dev 0.4.2-1.
This file is owned by root:root, with mode 0o777.
It is a symlink to /usr/lib/x86_64-linux-gnu/libayatana-ido3-0.4.so.0.0.0
/usr/lib/x86_64-linux-gnu/libayatana-ido3-0.4.so.0.0.0