/usr/lib/x86_64-linux-gnu/libdxflib.so.3 is in libdxflib3 3.12.2-1.
This file is owned by root:root, with mode 0o777.
It is a symlink to /usr/lib/x86_64-linux-gnu/libdxflib.so.3.12.2
/usr/lib/x86_64-linux-gnu/libdxflib.so.3.12.2