/usr/lib/libwtdbopostgres.so.38 is in libwtdbopostgres38 3.3.4+dfsg-6ubuntu1.
This file is owned by root:root, with mode 0o777.
It is a symlink to /usr/lib/libwtdbopostgres.so.3.3.4
/usr/lib/libwtdbopostgres.so.3.3.4