/usr/lib/x86_64-linux-gnu/libwayland-client.so.0 is in libwayland-client0 1.4.0-1ubuntu1.
This file is owned by root:root, with mode 0o777.
It is a symlink to /usr/lib/x86_64-linux-gnu/libwayland-client.so.0.2.0
/usr/lib/x86_64-linux-gnu/libwayland-client.so.0.2.0