/usr/lib/x86_64-linux-gnu/libxcb-xkb.so.1 is in libxcb-xkb1 1.11.1-1ubuntu1.
This file is owned by root:root, with mode 0o777.
It is a symlink to /usr/lib/x86_64-linux-gnu/libxcb-xkb.so.1.0.0
/usr/lib/x86_64-linux-gnu/libxcb-xkb.so.1.0.0