/usr/lib/x86_64-linux-gnu/libhdf5_hl_cpp.so is in libhdf5-dev 1.10.0-patch1+docs-4.
This file is owned by root:root, with mode 0o777.
It is a symlink to /usr/lib/x86_64-linux-gnu/libhdf5_hl_cpp.so.100.0.0
/usr/lib/x86_64-linux-gnu/libhdf5_hl_cpp.so.100.0.0