/usr/lib/x86_64-linux-gnu/libswe.so is in libswe-dev 1.80.00.0001-1ubuntu1.
This file is owned by root:root, with mode 0o777.
It is a symlink to /usr/lib/x86_64-linux-gnu/libswe.so.0.3.0
/usr/lib/x86_64-linux-gnu/libswe.so.0.3.0