/usr/lib/x86_64-linux-gnu/libokteta2gui.so.2 is in libokteta2gui2 4:17.12.3-0ubuntu1.
This file is owned by root:root, with mode 0o777.
It is a symlink to /usr/lib/x86_64-linux-gnu/libokteta2gui.so.0.9.1
/usr/lib/x86_64-linux-gnu/libokteta2gui.so.0.9.1