/usr/lib/x86_64-linux-gnu/libwx_gtk3u_webview-3.0.so.0 is in libwxgtk-webview3.0-gtk3-0v5 3.0.4+dfsg-3.
This file is owned by root:root, with mode 0o777.
It is a symlink to /usr/lib/x86_64-linux-gnu/libwx_gtk3u_webview-3.0.so.0.4.0