/usr/lib/x86_64-linux-gnu/libt3key.so.1 is in libt3key1 0.2.8-1.
This file is owned by root:root, with mode 0o777.
It is a symlink to /usr/lib/x86_64-linux-gnu/libt3key.so.1.0.0
/usr/lib/x86_64-linux-gnu/libt3key.so.1.0.0