/lib/x86_64-linux-gnu/libsystemd-journal.so.0 is in libsystemd-journal0 204-5ubuntu20.
This file is owned by root:root, with mode 0o777.
It is a symlink to /lib/x86_64-linux-gnu/libsystemd-journal.so.0.10.2
/lib/x86_64-linux-gnu/libsystemd-journal.so.0.10.2