/usr/lib/x86_64-linux-gnu/libkritaflake.so.16 is in krita 1:4.0.1+dfsg-0ubuntu1.
This file is owned by root:root, with mode 0o777.
It is a symlink to /usr/lib/x86_64-linux-gnu/libkritaflake.so.16.0.0
/usr/lib/x86_64-linux-gnu/libkritaflake.so.16.0.0